LESSON UNIT 3

1. Jelaskan yang dimaksud dengan Organizational elements dan tujuannya
2. Jelaskan yang dimaksud dengan Master data dan tujuannya
3. Jelaskan yang dimaksud dengan Transaction  dan tujuannya
4. Sebutkan unsur-unsur dari organizational element
5. Jelaskan yang dimaksud dengan client
6. Jelaskan yang dimaksud dengan Company code
7. Jelaskan yang dimaksud dengan Plant
8. Jelaskan yang dimaksud dengan Storage location
9. Jelaskan yang dimaksud dengan Sales organization
10. Jelaskan yang dimaksud dengan Distribution channel
11. Jelaskan yang dimaksud dengan Organizational unit
12. Jelaskan yang dimaksud dengan Position
13. Jelaskan yang dimaksud dengan IDES
14. Hubungan master data dengan aplikasi yang ada di SAP
15. Sifat master data
16. Sebutkan data yang disimpan dalam master data
17. Jelaskan isi dari customer master data
18. Jelaskan tiga struktur dalam customer master
19. Jelaskan material master
20. Jelaskan personnel file
21. Jelaskan isi dari personnel file
22. Jelaskan yang dimaksud dengan organizational unit 
23. Jelaskan yang dimaksud dengan Jobs
24. Jelaskan yang dimaksud dengan Positions
25. Jelaskan yang dimaksud dengan Persons
26. Jelaskan yang dimaksud dengan transaction
27. Bagaimana hubungan antara transaksi dengan dokumen

         

1.      Organizational Elemenet A company;s enterprise structure is mapped to SAP applications using organizational elements

2.      Master Data Created centrally and available to all applications and all authorized users,master data also has an organizational aspect because its information is organized into views that are assigned to organizational elements.

3.      Transaction are application programs that execute business processes in SAP system.Examples includes create sales order,chage customer master or display a sales order’s list report.

4.      Unsur-unsur Organizational Element:

Client,Company Code,Plant,Storage Location,Sales Organization,Distribution Channel,Organizational Unit

Position

5.      Client klien adalah elemen tingkat tertinggi dari semua elemen organisasi yang diwakilinya

 

6.      Company Code

 kode perusahaan adalah unit akuntansi hukum independen yang mewakili unsur organisasi sentral akuntansi keuangan

7.      Plant

dapat memproduksi produk, mendistribusikan produk atau memberikan layanan (service)

 

8.      Storage Location

bahan saham dalam manajemen persediaan dapat dibedakan dalam satu tanaman menurut lokasi penyimpanannya

9.      Sales Organization

adalah elemen organisasi sentral dalam pesanan penjualan yang mengontrol masa dijual ke pelanggannya

10.  Distribution channel

saluran distribusi dapat digunakan untuk menentukan bagaimana produk yang berbeda mencapai pemakainya, seperti, grosir

11.  Organizational unit

Unit organisasi menggambarkan berbagai unit bisnis yang ada di perusahaan. Unit tsb sering  secara longgar didefinisikan sebagai département fungsional atau regional

12.  Position

adalah tugas individual  karyawan dalam perusahaan

13.  IDES adalah sebuah perusahaan internasional yang tergantung pada kolaborasi dengan mitra bisnis eksternal dan pandangan global.IDES juga merupakan perusahaan manufaktur. Beroperasi di seluruh dunia dan memiliki sejumlah anak perusahaan.

 

14.  Hubungan master data dengan aplikasi yang ada di SAP

15.  Master Data mendefinisikan, antara lain, bagaimana sebuah produk dijual, diproduksi, dibeli, diinventarisasi, dicatat, dan dihitung biayanya. Informasi dalam master materi dikelompokkan menjadi pandangan yang diselenggarakan fungsi bisnis

16.  sales,purchasing,inventory management,materials planning,invoice verification,finance,and human resources

17.  Costumer master berisi informasi kunci yang mendefinisikan hubungan bisnis antara perusahaan dan pelanggan tersebut. Perusahaan data kode mengontrol prosedur posting dan pengolahan selanjutnya, seperti pembayaran dan data dunning.Sales organisasi yang menyediakan informasi pelanggan untuk eksekusi mendukung proses bisnis seperti memasukkan pesanan penjualan, pengiriman, penagihan, dan pemrosesan pembayaran

18.  General Data : Data ini juga relevan untuk setiap kode perusahaan dan setiap organisasi penjualan dalam perusahaan

Data for Company codes : Data ini mencerminkan khusus perusahaan perjanjian dengan pelanggan.

Data for Sales : Data ini memiliki karakteristik yang berbeda untuk organisasi perusahaan penjualan dan saluran.

19.  Material Master berisi semua informasi penting perusahaan perlu untuk mengelola bahan dalam organisasinya. Master bahan mendefinisikan, antara lain, bagaimana sebuah produk dijual, diproduksi, dibeli, diinventarisasi, dicatat, dan costed.Informasi di master bahan dikelompokkan menjadi pandangan yang diselenggarakan fungsi bisnis

20.  Personil file merupakan catatan yang digunakan master data ini digunakan terutama oleh mySAP ERP manajemen Human Capital. Catatan master ini mengikuti dasar yang sama dengan tiga bagian struktur yang ada dalam costumer master.

21.  Catatan master ini mengikuti dasar yang sama tiga bagian struktur, seperti halnya catatan master lainnya.
Unsur-unsur organisasi yang digunakan oleh mySAP HCM adalah unik dan, sebagai kelompok, mereka disebut sebagai Manajemen Organisasi.
    Fungsi Manajemen Organisasi memungkinkan Anda dengan cepat dan efficienctly memetakan struktur organisasi Anda saat ini dan pelaporan dengan organisasinya benda-organisasi unit, pekerjaan, posisi, dan tugas

.

22.  Organizational Unit : menggambarkan berbagai unit bisnis yang ada di perusahaan Anda. Beberapa organisasi unit dan hubungan mereka dari struktur organisasi. Unit organisasi dapat secara bebas didefinisikan sebagai departement fungsional atau regional atau sebagai kelompok proyek, tergantung pada jenis organisasi

23.  Jobs sebagai deskripsi atau template yang berlaku untuk beberapa posisi dengan persyaratan tugas serupa atau karakteristik lain

24.  Positions posisi adalah tugas individu karyawan dalam perusahaan

25.  Persons memegang posisi dalam struktur organisasi. Orang juga mewakili karyawan

26.  Transaction adalah aplikasi program yang mengeksekusi proses bisnis SAP system.Bila mungkin, master data akan disalin selama pemrosesan transaksi, sehingga menghindari data kembali masuk 

27.  Setiap kali transaksi dijalankan dalam sistem, sebuah dokumen dibuat

Unit 3

System-Wide Concept

Lesson overview

This lesson focuses on the system-wide concepts that underline the SAP system.These concepts,organizational elements,master data,and transactions,are the basic elements designed and utilized to represent a company’s enterprise structure and business processes within in the SAP system.

Organizational Elements

A company;s enterprise structure is mapped to SAP applications using organizational elements

Master Data

Created centrally and available to all applications and all authorized users,master data also has an organizational aspect because its information is organized into views that are assigned to organizational elements.

Transaction

Transaction are application programs that execute business processes in SAP system.Examples includes create sales order,chage customer master or display a sales order’s list report.

Business Examples

Processes within a company generally take place a cross departmental boundaries.In global companies,these processes take place across national and company boundaries.The long-term success of IDES AG,is dependent on collaboration with business partners and a global outlook.IDES wants new orders from costumers entered into the SAP system with minimal data entry and maximum data accuracy IDES must also have record of all transactions.

Organizational Elements

• ·         Client
• ·         Company Code
• ·         Plant
• ·         Storage Location
• ·         Sales Organization
• ·         Distribution Channel
• ·         Organizational Unit
• ·         Position

IDES

   IDES (International Demonstration and Educational System) is an international company dependent upon collaborations with external business partners and a global outlook.

   IDES AG is a manufacturing company.It operetes worldwide and has a number of subsidiaries.This company’s processes are using during this training corse to demonstrate the solutions provided by SAP

   As a model company,IDES has a large number of business branches and branch-specific subsidiaries.Business processes are fully set up and include all core areas,such as purchasing,sales,marketing,and manufacturing.

   As an international company,IDES has several holdings and requires the ability to report to shareholders on an international bases.Management’s goal over the next year is to increase profits.Costing analysis reports,cash management reports,and overhead cost reports are to be captured to a business intelligence system for management review

   IDES AG produces many products.Products are manufactured at a number of production locations worldwide.Global planning ensures that deliveries are made from the nearest distribution center.

System-Wide Master Data Concept

   In SAP,master data is created centrally and available to all applications and all authorized users.Centrally stored master data means data records are always consistent,up-to –date,and free redundancy.Master data also has an organizational aspect because its information is organized into views that are assigned to organizational elements.

   Integrating of corresponding data into one single database objects means that the problem of data redundancy is not an issue and data inetgrity enhanced.All areas can use the stored data,including sales,purchasing,inventory management,materials planning,invoice verification,finance,and human resources

.

Costumer Master

   A costumer master contains key information that defines the business relationship between a company and its costumer.Company code data controls the posting procedure and subsequent processing,such as payments and dunning.Sales organization data provides information on costumers for support execution of such business processes as entering sales orders,shipping,billing,and processing payment.The costumer master;s three part structure is represented by:

1.       General Data: This data is equally relevant to every company code and every sales organization within a company

2.       Data for Company Codes: This data reflects company-specific agreements with costumer.

3.       Data for Sales : This data has different characteristics for a company’s sales organizations and channels.

Material Master

   The material master contains all of the key information a company needs to manage a material within its organization.The material master defines,among other things,how a product is sold,manufactured,purchased,inventoried,accounted,and costed.The information in the material master is grouped into views that are organized business function.

Personnel file

   Personnel files are master data records used primarily mySAP ERP Human Capital management.These master records follow the same basic three-part structure,as do other master records.

The organizational elements used by mySAP HCM are unique and,as a group,they are referred to as Organizational Management.

   The functions of Organizational Management enable you to quickly and efficienctly map your current organizational and reporting structure with its organizational objects-organizational units,jobs,positions,and task.

Transactions

   Transactions are application programs that execute business processes in the SAP system.Whenever possible,master data is copied during transaction processing,thusavoiding re-entry of data.

   In addition,when performing each transaction,applicable organizational elements must be entered.For example,by specifying the sales organization information,the appropriate sales group is given credit for the sales activity,similary,the designation of the plant/storage location determines product sourcing.

Whenever a transaction is executed in the system,a document is created.That document,a data record of the transaction,contains all of the relevant predefined information from the master data and organizational elements

Introduction Lesson : Product overview

Introduction Lesson : Product overview

Jelaskan

1.       Sejarah ERP system

2.       Jelaskan tiga produk SAP untuk perusahaan besar, menengah dan kecil

3.       MySAP solution

4.       Component or application

5.       Isi dari component

6.       Membedakan SAP sebagai solution dan sebagai component

7.       SAP NetWeaver technology

8.       Sebutkan empat area SAP NetWeaver  

9.       SAP netweaver component

10.   Jelaskan MySAP ERP, mySAP ERP Financial, mySAP ERP HCM, mySAP Business suite, mySAP CRM, mySAP PLC, mySAP SCM, mySAP SRM,

11.   Industri yang dilayani oleh SAP

12.   Jelaskan SAP xApps

13.   Karakteristik dari SAP xApps

14.   Contoh SAP xApps

15.   Jelaskan mySAP all in one dan keuntungannya

16.   Jelaskan mySAP business one dan keuntungannya

17.   SAP is a solution company

18.   mySAP solution platforms are open and flexible (True/False)

19.   all of the mySAP solutions are role based 

Jawaban:

1.    History of ERP systems
In the 1990’s, the internet began to grow rapidly. New companies developed new application for the internet and the “new economy” was born. These firms became known as “dotcom” campanies. The market changed due to the growth of the internet. As a result, business processes were defined that stretched across company boundaries. Sales orders were not only entered directly in the ERP system, but also in the field by field service employees using mobile devices. These new functions led to the development of new product . such “new dimension products” led to an enhancement of ERP functions.
SAP develop systems for internet purchasing (SAP enterprise buyer), customer service (SAP customer relationship management), and comprehensive planning functions (SAP advanced planning and optimization).irrespective of the internet, comprehensive accounting tools had also become necessary for companies financial data. Data was no longer simply stored in a database, as was the case in a ERP system. At the beginning of 2003, SAP redefined the concept of an ERP system. In the areas of human resources, accounting, and basis technology, it corresponds tp the enhanced solution of the new dimention product. This mySAP ERP solution is compatible with additional components, enabling business processes to be defined on a cross-company level.

2.    mySAP Business Suite
mySAP business suite provides this flexibility in a complete package of open, integrated solution for the entire value chain. Customers, employees, suppliers, and partners are brought together to form one unit in a process that takes almost no time at all. used for large companies.
mySAP All In-One
mySAP All In-One solutions offer out of the box flexibility combined with the power of SAP’s world class business solution. The solution is simple yet powerful, allowing an immediate and complete view of both business operations and costumer activities.  SAP solutions for midsize businesses.
SAP Business One
SAP Business one is an easy to use business and operational management solution for emerging and dynamic business ranging in size from, 10 to several hundred employees. SAP solutions for small businesses.

3.    mySAP Solutions
mySAP business suite consists of individual SAP solution. Each solution has its own focus area and provides functions to map this area in a flexible and comprehensive way. All solutions are based on SAP NetWeaver technology.

4.    Solutions and Components
Solutions are SAP’s products seen from the point of view of the customer, with an outside-in focus on company processes, components, however, represent SAP’s technical view of software with an inside-out focus. Components are not the actual company solutions, simply the technical building block. Business experiences, strategies, and know how are incoporated in SAP software. The flexibility and comprehensive integration and adaptation options offered by SAP software result in high-performance, industry-specific, and cross-industry e-business solutions.
To differentiate between solutions and components, solutions have the prefix mySAP and components – the (technical) detailed view – have the prefix SAP. For example, mySAP customer relationship management is thesolution that the customer implements. SAP ERP central component, SAP enterprise portals, SAP business information warehouse, and SAP customer relationship management are technical part of this solution.

5.  
6.  
7.    SAP NetWeaver
SAP’s application and integration platform is the technical foundation for mySAP Business Suite and SAP xApps. It delivers a complete, open, and flexible infrastructure that allows you to easily integrate SAP and non-SAP application.

8.    SAP NetWeaver is divided into four areas
1.people integration
People integration ensures that your employees have the information and function that they requir to perform their work as quickly and efficiently as possible.
2. information integration
Information integration is used to manage all data relevant to companies. This includes data for your own company and data relating to third parties.
3. process integration
Process integration ensure that business processes run across system boundaries in a heeterogeneous system landscape.


9.    SAP NetWeaver components
        SAP ALL                - SAP SOLUTION MANAGER
        SAP XI                        - SAP BW
        SAP MI                - SAP MDM


10.    mySAP ERP
    mySAP ERP allows companies to again better control of their administrative and operations environment and increase efficiency and profitability.
        mySAP ERP Financials
    The aim if this solution is to utilize a companiy’s funds effectively and, therefore, increase profitability in the long term.
        mySAP ERP Human Capital Management
    mySAP ERP HSM enables to utilize them effectively toward the success of your campany. This solution covers all aspects of human resource, from recruitment and training though payroll.
        mySAP Customer Relationship Management
    mySAP CRM is a solution that puts the customer firs. The customer can contact companies through a number of communication channels.
mySAP Product Lifecycle Management
    This solution offers functions for product development, product dafety, quality, and maintenance.
        mySAP Supply Chain Management
    Supply chains do not end at the werehouse doors. You can use mySAP SCM to plan and optimize supply chains across company boundaries.
        mySAP Supplier Relationship Management
    Procurement over the internet and marketplaces are only two ways to optimize purchasing. Employees can use this solution to provide procurement with information abaout demand directly from their work centers quickly, easily, and effectively.

11.    More than 20 industry solutions are available today. Among these are solutions for:
•    Automotive
•    Banking
•    Chemicals
•    Healthcare
•    Logistics Servive Providers
•    Mining
•    Oil and Gas
•    Public Sector
•    Retail


12.    SAP xApps
SAP xApps are a new breed of applications that enable you to drive improvements and innovations in your company more easly, with their ability to combine existing, heterogeneous system to form croos-functional precesses, SAP xApps bring people, information, and business processes together to make your company more dynamic and competitive. This flexibility allows you to implement business-wide strategies more easly and efficiently. SAP xApps increase the value of existing investments in the core business area and maximize the return on strategic assets, including employees, knowledge, products, business relationship, and information technology.
13.    The defining characteristics of SAP xApps are:
    Cross-fuctional
    Composite
    Cross-system
    Information-driven
14.    Some examples of available xApps
         SAP xApp Cost and Quotation Management (SAP xCQM)
         SAP xApp Resource and portfolio management (SAP xRPM)
         SAP xApp Product Definition (SAP xPD)
        SAP xApp Emissions Management (SP xEM)

15.  
16.    
17.    SAP is a solutions company
Business experience, strategy, and know how are intangibles, which, bundled together with the  vast flexibility, integration, and customizing potential of SAP software, have resulted in more powerfull e-business solution within specific industries and across industry borders.
18.    mySAP solution platforms are open and flexible
is true because mySAP solution platforms support database, applications, operating systems, and hardware from almost every major vendor.
19.    All of the mySAP solutions are role-based
Is true because all of the processes within the SAP systems are mapped back to user roles. The mySAP Enterprise Portal let you customize your interface so that you can perform tasks associated with your rule

 

Navigasi Lesson : logging on and personalizing your interface
Jelaskan
1.       Apa itu SAP GUI
2.       Varian dari SAP GUI
3.       Bagaimana proses log on SAP?
4.       Sebutkan tiga informasi yang dibutuhkan untuk melakukan Log on SAP
5.       Dua cara melakukan log on
6.       Perintah bila melakukan multiple log on
7.       Apakah bisa membuka lebih dari satu session dalam SAP? Caranya?
8.       Apa pengaruh positif dan negatif dari membuka lebih dari satu session
9.       Sebutkan lima cara untuk melakukan personalisasi user interface

Jawaban :
1.    SAP GUI is the standard program for accessing almost all SAP solutions
2.    These variants are all graphically equivalent,but adapted for use in different environments.
3.    Before you log on for the first time,your system administrator will give you an initial password.During the process of logging on,you should enter a new password,one that you alone will know.After that,use your own password whenever you log on.If there are system wide messeges,the system messages dialog box appears.After you have read the messages,choose continue to close the dialog box.
4.   
5.    Multiple Logons and Multiple Sessions
6.    You should only be logged on once per SAP system,and should use multiple sessions if you want to view multiple windows.Using multiple sessions allows you to open several windows at the same time on the same computer
7.    Yes,
Continue with this logon and end any other logon of this user in the system
Continue with this logon without ending any other logons in the system(this is tracked)
Terminate this logon
8.    Positif: helpful if you are in the middle of completing a transaction and you need to verify some information in order to complete the transaction
Negatif: too many open sessions can result in slower system performance
9.    Change the layout of the SAP Easy Access screen
Track your input history to provide input help
Display status messages in a pop-up window instead of the status bar
Set preferences for how data displays
Adjust the color and behavior of the screens and fields

Navigation Lesson: Navigating in the SAP system

Navigation Lesson: Navigating in the SAP system

Jelaskan

1.       Gambarkan lay out SAP easy access screen

2.       Tiga cara navigasi untuk memulai transaksi

3.       Beda antara SAP standard menu dengan role based user menue

4.       Sebutkan menu standar dalam screen SAP

5.       Bagian dari Screen SAP yang menunjukkan informasi umum dalam sistem SAP dan transaksi atau task yang sedang dikerjakan

6.       Sebutkan cara untuk mengakhiri atau menutup SAP dengan menuliskan pada common field

7.       Jelaskan bagian-bagian : menu bar, standard tool bar, title bar, apllication tool bar, comman field, status bar, input field, check boxes, radio buttons, tab, transaction code, menus, favorite or user menu

8.       Cara mengetahui transaction code

9.       T Code: /n, /nxxxx/, /o, /oxxxx, /nend, /nex, /i, su3, sm04, /nsm04

10.   Role based user menus,

11.   Sebutkan tiga isi dari menu Favorites

12.   Isi dari status bar

13.   Status fild     

Jawaban:

  1. Screen Layout

     2. cara untuk memulai transaksi

Transaksi di SAP mengacu pada aplikasi atau program tertentu. Untuk memulai start

aplikasi, Anda dapat menggunakan cara berikut:

• Gunakan menu path-tree yang tersedia pada sisi kirim layar SAP Anda

• Ketik kode transaksi atau tcode pada command field

Contoh:

Untuk membuat transaksi Purchase requisition, Anda dapat mengklik pada logistics

> Materials Management > Purchasing > Purchase requisition >

Create , lalu klik dua kali

Gambar

Gambar 7: Memanggil transaksi melalui menu path-tree

Namun jika Anda mengetahu kode transaksi atau tcode-nya, Anda bisa langsung

mengetikkan tcode tersebut pada command field atau shortcut button dan klik ENTER

atau tanda contreng berikut :

Kemudian untuk mengakhiri sebuah transaksi , lakukan dengan memilih salah icon

berikut ini .

Kadang-kadang di dalam menu path-tree tidak terlihat Kode Transaksi atau tcode-nya.

Untuk itu maka Anda dapat mengaktifkan dengan cara Extra > Settings

Gambar 8: Menu extra > settings

Lalu contreng Display technical names dan tekan ENTER

Gambar

Gambar 9: Setting display technical names

3. Role-based user menu berisi kumpulan transaksi dan laporan yang terkait dengan

peran yang diberikan pada user tersebut

Gambar 4: Role Based menu

Perlu diingat bahwa sekalipun seorang user sudah dibatasi berdasarkan role-based user

menu, user tersebut masih dapat mengeksekusi transaksi menggunakan tcode pada

command field, tentu sepanjang permission dari user terhadap tcode tersebut

diperkenankan..

5. Screen SAP yang menunjukkan informasi umum dalam sistem SAP dan transaksi atau task yang sedang dikerjakan

6.

7. menu bar : menu bar adalah baris atas setiap jendela utama dalam sistem SAP menu yang ditampilkan tergantung aplikasi yang Anda gunakan. menu ini juga dapat berisi menu cascading

   standard tool bar tombol adalah toolbar standar yang ditampilkan pada setiap layar SAP. Jika tombol tertentu tidak tersedia dalam aplikasi, tombol yang Anda tidak dapat menggunakan dinonaktifkan. Jika Anda menempatkan kursor di atas tombol untuk waktu yang singkat, sistem dsiplays bendera dengan nama atau fungsi tombol. Jika sesuai, pengaturan fucntion sesuai kunci juga ditampilkan.

title bar : the title bar menamai fungsi yang sedang Anda gunakan

apllication tool bar : the application toolbar  menunjukkan tombol yang tersedia dalam aplikasi yang sedang Anda gunakan

tab  Tab memungkinkan untuk mengatur area layar beberapa untuk meningkatkan kejelasan dan organisasi data

status bar  Status bar menampilkan informasi tentang status sistem saat ini, kita seperti peringatan dan kesalahan. Anda juga dapat mengubah tampilan varian untuk menunjukkan, misalnya, kode transaksi transaksi yang sedang Anda gunakan

transaction code : setiap transaksi atau fungsi dalam sistem memiliki kode transaksi. Anda dapat memasukkan kode transaksi di bidang perintah untuk memulai transaksi. Ini adalah salah satu cara yang paling langsung untuk memulai transaksi.

Menus Menu memungkinkan Anda untuk menemukan transaksi tertentu ketika Anda tidak mengetahui kode transaksi. Menu ini diatur sesuai dengan tugas Anda melakukan dalam sistem SAP

Check boxes : checkbox memungkinkan Anda untuk memilih beberapa pilihan dari sekelompok bidang

Radio buttons  Dengan tombol radio, Anda hanya dapat memilih satu pilihan.

8. Cara mengetahui transaction code

      Anda dapat menemukan kode transaksi dengan I. menavigasi ke transaksi, dan kemudian memilih sistem

       Status

9. /n : cancels the current transaction

   /nXXXX : initiates the specified transaction directly from another transaction

   /0 : display an overview of sessions

   /oXXXX : initiates the specified transaction in a new sesion

   /nend : ends the logon sesion with a confirmation pop-up window

   /nex : ends the logon sesion without a confirmation pop-up window

   /I : deletes your current session

10. role based user menus

  

peran pengguna berbasis menu adalah koleksi kegiatan yang digunakan dalam skenario bisnis. pengguna dapat mengakses transaksi, laporan, atau aplikasi berbasis web itu melalui berbasis peran mereka menu

11. isi dari favorite menu : transaction, link to files, internet addresses

12. status bar : Menampilkan informasi status system SAP dan transaksi atau task yang sedang Anda kerjakan. Status system misalnya warning dan erro