How To Fix M2775 - The IDoc entry description already exists!

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 775

• Message text: The IDoc entry description already exists!

What causes this issue?

Connection of the logical system to the LIS inbound interface is
globally valid, i.e. if a logical system has been defined for one
LIS IDoc "External data", this is automatically valid for all other
LIS "External data" IDocs.

System Response

It is not necessary to save the logical system.

How to fix this error?

You can display all of the logical systems that are already defined
via: <LS> Utilities -> IDoc sender systems</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2775 - The IDoc entry description already exists! ?

  The SAP error message M2775, "The IDoc entry description already exists," typically occurs when there is an attempt to create or process an IDoc (Intermediate Document) that has a duplicate entry in the IDoc control record. This can happen in various scenarios, such as when trying to send or receive IDocs that have already been processed or when there are issues with the IDoc configuration.
  Causes:
  
  Duplicate IDoc Control Records: The IDoc control record for the IDoc you are trying to process already exists in the database.
  IDoc Processing Issues: The IDoc may have been processed previously, and the system is trying to reprocess it without proper handling.
  Configuration Errors: There may be issues with the configuration of the IDoc types or message types that lead to conflicts.
  Data Consistency Issues: Inconsistent data or errors in the data being sent can lead to duplicate entries.
  
  Solutions:
  
  Check for Existing IDocs: Use transaction code WE02 or WE05 to check if the IDoc already exists in the system. If it does, determine whether it has been processed successfully or if it is still in an error state.
  Delete Duplicate IDocs: If you find that the IDoc is a duplicate and is not needed, you can delete it using transaction code WE19 (for testing) or by using the appropriate IDoc deletion methods.
  Review IDoc Configuration: Ensure that the IDoc types and message types are correctly configured. Check for any inconsistencies in the IDoc settings.
  Error Handling: Implement proper error handling in your IDoc processing logic to avoid reprocessing IDocs that have already been handled.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  IDoc Monitoring: Regularly monitor IDocs using transaction codes WE02 and WE05 to ensure that there are no stuck or erroneous IDocs in the system.
  IDoc Documentation: Familiarize yourself with the IDoc documentation and guidelines provided by SAP to understand the structure and processing of IDocs.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation.