How To Fix RSM121 - IDoc & is not of inbound processing type (change)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 121

• Message text: IDoc & is not of inbound processing type (change)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM121 - IDoc & is not of inbound processing type (change) ?

  The SAP error message RSM121 indicates that an IDoc (Intermediate Document) is not of the expected inbound processing type, specifically for a change operation. This error typically occurs when the system is trying to process an IDoc that is not configured correctly for the expected operation type.
  Cause:
  
  IDoc Type Mismatch: The IDoc being processed is not of the expected type for inbound processing. For example, if the system expects a change IDoc but receives a creation or deletion IDoc instead.
  Incorrect Message Type: The message type of the IDoc does not match the expected message type for the operation being performed.
  Configuration Issues: There may be configuration issues in the IDoc processing settings, such as incorrect settings in the partner profile or the IDoc type not being set up correctly for inbound processing.
  Data Issues: The data within the IDoc may not conform to the expected structure or may be missing required fields.
  
  Solution:
  
  Check IDoc Type: Verify that the IDoc type being processed is indeed the correct type for the operation you are trying to perform. Ensure that it is set up for inbound processing and is of the correct message type.
  Review Partner Profile: Check the partner profile settings in transaction WE20 to ensure that the inbound parameters are correctly configured for the IDoc type you are using.
  Validate IDoc Structure: Use transaction WE19 to simulate the IDoc and check if the structure and data are correct. This can help identify any missing or incorrect fields.
  Check IDoc Status: Use transaction WE02 or WE05 to check the status of the IDoc. Look for any errors or warnings that might indicate what went wrong during processing.
  Consult Documentation: Review the documentation for the specific IDoc type and message type to ensure that you are following the correct procedures for inbound processing.
  Debugging: If necessary, you can debug the inbound processing function module to see where the error is occurring and gather more information about the issue.
  
  Related Information:
  
  IDoc Types: Familiarize yourself with the different IDoc types and their purposes. Each IDoc type is designed for specific operations (create, change, delete).
  Message Types: Understand the message types associated with the IDocs you are working with, as they dictate the expected processing behavior.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on handling this error.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as WE02 (Display IDoc), WE05 (IDoc List), WE20 (Partner Profiles), and WE19 (Test IDoc).
  
  By following these steps, you should be able to identify the cause of the RSM121 error and implement the appropriate solution.