How To Fix GS831 - Set class &1 not supported in IDoc &2 input

SAP Error Message - Details

• Message type: E = Error

• Message class: GS - Sets

• Message number: 831

• Message text: Set class &1 not supported in IDoc &2 input

What causes this issue?

You tried to create a set from <DS:DE.SETCLASS>set class</> &V1& in the
input of an IDoc of message type &V2&. This set class is not supported.
Other possible set classes are:
INCLUDE CO_OM_GROUP_TYPES OBJECT DOKU ID TX

System Response

The set is not created.

How to fix this error?

If you created the IDoc yourself, correct the set class.
If the system created the IDoc, notify your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GS831 - Set class &1 not supported in IDoc &2 input ?

  The SAP error message GS831, which states "Set class &1 not supported in IDoc &2 input," typically occurs when there is an issue with the handling of set classes in the context of IDoc processing. This error indicates that the specified set class (denoted by &1) is not supported for the IDoc type (denoted by &2) being processed.
  Causes:
  
  Unsupported Set Class: The set class specified in the IDoc is not defined or not supported for the particular IDoc type you are trying to process.
  Configuration Issues: There may be configuration issues in the IDoc processing settings, such as missing or incorrect mappings for the set class.
  Data Issues: The data being sent in the IDoc may contain invalid or unexpected values for the set class.
  Version Mismatch: There could be a version mismatch between the IDoc structure and the expected structure in the SAP system.
  
  Solutions:
  
  Check Set Class Definition: Verify that the set class specified in the IDoc is correctly defined in the SAP system. You can do this by checking the configuration settings for the relevant IDoc type.
  Review IDoc Mapping: Ensure that the IDoc mapping is correctly set up to handle the set class. This may involve checking the IDoc type and segment definitions.
  Validate IDoc Data: Inspect the data being sent in the IDoc to ensure that it conforms to the expected format and values. Look for any discrepancies or invalid entries.
  Update Configuration: If the set class is indeed required, you may need to update the configuration to support it. This could involve customizing the IDoc processing logic or adding the necessary definitions.
  Consult Documentation: Refer to SAP documentation or notes related to the specific IDoc type and set class for any additional guidance or known issues.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  IDoc Types: Understand the specific IDoc type you are working with and its associated segments and fields.
  Transaction Codes: Use transaction codes like WE02 (Display IDoc) or WE19 (Test IDoc) to analyze the IDoc and troubleshoot the issue.
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide additional context.
  Custom Development: If there is custom development involved, review the code to ensure that it correctly handles the set class and IDoc processing.
  
  By following these steps, you should be able to identify the root cause of the GS831 error and implement an appropriate solution.