How To Fix ED551 - Definition of & not found

SAP Error Message - Details

• Message type: E = Error

• Message class: ED - ABAP/4 Editor messages

• Message number: 551

• Message text: Definition of & not found

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 ED551 - Definition of & not found ?

  The SAP error message ED551, which states "Definition of & not found," typically occurs in the context of SAP's Electronic Data Interchange (EDI) or when working with IDocs (Intermediate Documents). This error indicates that the system is unable to find a specific definition or configuration related to the object or data element referenced by the "&" symbol.
  Causes:
  
  Missing Configuration: The most common cause is that the required configuration for the EDI or IDoc processing is missing. This could be a missing message type, partner profile, or segment definition.
  Incorrect Mapping: If the mapping between the IDoc structure and the target system is not correctly defined, it can lead to this error.
  Transport Issues: If the necessary objects have not been transported correctly from the development environment to the production environment, this error may occur.
  Version Mismatch: There may be a version mismatch between the sending and receiving systems, leading to missing definitions.
  
  Solutions:
  
  
  Check Configuration:
  
  Verify that the necessary EDI/IDoc configurations are in place. This includes checking the partner profiles (transaction WE20), message types (transaction WE81), and IDoc types (transaction WE30).
  Ensure that the relevant segments and fields are defined in the IDoc type.
  
  
  
  Review Mapping:
  
  Check the mapping between the IDoc and the target system to ensure that all required fields are correctly mapped and defined.
  
  
  
  Transport Objects:
  
  If the error occurs in a production environment, ensure that all necessary objects have been transported from the development environment. You may need to check the transport logs for any missing objects.
  
  
  
  Check for Updates:
  
  Ensure that both the sending and receiving systems are updated to compatible versions. If there are any discrepancies, consider updating the systems or adjusting the configurations accordingly.
  
  
  
  Debugging:
  
  If the issue persists, consider using transaction WE19 (IDoc test tool) to simulate the IDoc processing and identify where the error occurs. This can help pinpoint the missing definition.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  WE20: Partner Profiles
  WE30: IDoc Types
  WE81: Message Types
  WE19: Test IDoc
  
  
  Documentation: Refer to SAP Help documentation for EDI and IDoc processing for detailed guidance on configuration and troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  By following these steps, you should be able to identify and resolve the cause of the ED551 error in your SAP system.