How To Fix E0636 - Select a basic IDoc type for extension &

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 636

• Message text: Select a basic IDoc type for extension &

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message E0636 - Select a basic IDoc type for extension & ?

  The SAP error message E0636, which states "Select a basic IDoc type for extension &," typically occurs when you are trying to create or modify an IDoc extension without specifying a basic IDoc type. This is a common issue when working with IDocs in SAP, particularly in the context of enhancing or extending existing IDoc types.
  Cause:
  The error arises because:
  
  You are attempting to create an extension for an IDoc type without selecting a corresponding basic IDoc type.
  The system requires a basic IDoc type to define the structure upon which the extension will be built.
  There may be a configuration issue or a missing entry in the IDoc type definitions.
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Select a Basic IDoc Type:
  
  When creating or modifying an IDoc extension, ensure that you select a valid basic IDoc type. This can be done in the transaction code WE30 (IDoc Type Development).
  Choose the option to create an extension and then select the appropriate basic IDoc type from the list.
  
  
  
  Check Existing IDoc Types:
  
  Use transaction WE02 to view existing IDoc types and ensure that the basic IDoc type you want to extend is available and correctly defined.
  
  
  
  Review IDoc Configuration:
  
  Ensure that the IDoc configuration is correctly set up in your SAP system. This includes checking the IDoc segments and ensuring that they are properly defined.
  
  
  
  Consult Documentation:
  
  If you are unsure about which basic IDoc type to select, refer to the SAP documentation or consult with your functional team to understand the appropriate IDoc types for your business process.
  
  
  
  Testing:
  
  After making the necessary changes, test the IDoc processing to ensure that the extension works as expected without triggering the error.
  
  
  
  Related Information:
  
  IDoc Types: IDocs are used for data interchange between SAP systems and external systems. Each IDoc has a basic type and can have extensions to accommodate additional data fields.
  Transaction Codes:
  
  WE30: Create or modify IDoc types.
  WE31: Create or modify IDoc segments.
  WE02: Display IDocs.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to IDoc extensions and configurations.
  
  By following these steps, you should be able to resolve the E0636 error and successfully create or modify your IDoc extension.