How To Fix C1668 - Error reading change documents

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 668

• Message text: Error reading change documents

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 C1668 - Error reading change documents ?

  The SAP error message C1668, which states "Error reading change documents," typically occurs when there is an issue with accessing or retrieving change document data in the SAP system. This can happen for various reasons, including configuration issues, data inconsistencies, or problems with the underlying database.
  Causes:
  
  Missing Change Document Configuration: The change document object may not be properly configured in the system.
  Authorization Issues: The user may not have the necessary authorizations to read change documents.
  Database Issues: There could be issues with the database that prevent the retrieval of change documents.
  Data Inconsistencies: Corrupted or inconsistent data in the change document tables can lead to this error.
  Transport Issues: If the change document configuration was transported from another system, it may not have been set up correctly.
  
  Solutions:
  
  Check Configuration: Ensure that the change document object is correctly configured in the system. You can check this in transaction code SCDO (Change Document Objects).
  Review Authorizations: Verify that the user has the necessary authorizations to access change documents. This can be done by checking the user's roles and authorizations in transaction SU53 or PFCG.
  Database Consistency Check: Perform a consistency check on the database tables related to change documents. You can use transaction SE11 to check the relevant tables.
  Check for Locks: Ensure that there are no locks on the change document tables that could be preventing access.
  Transport Logs: If the issue arose after a transport, check the transport logs for any errors or warnings related to change documents.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates available that resolve the issue.
  Debugging: If you have access to debugging tools, you can analyze the program or function module that is generating the error to identify the root cause.
  
  Related Information:
  
  Transaction Codes: 
  
  SCDO: Change Document Objects
  SE11: Data Dictionary
  SU53: Authorization Check
  PFCG: Role Maintenance
  
  
  SAP Notes: Always check the SAP Support Portal for any specific notes related to error C1668, as they may provide additional context or solutions.
  Documentation: Review SAP documentation related to change documents and their configuration for further insights.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.