How To Fix /ACCGO/CAS_FLLW_MSG634 - Application error: Mirror application document does not exist for &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /ACCGO/CAS_FLLW_MSG -

• Message number: 634

• Message text: Application error: Mirror application document does not exist for &1

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /ACCGO/CAS_FLLW_MSG634 - Application error: Mirror application document does not exist for &1 ?

  The SAP error message /ACCGO/CAS_FLLW_MSG634 Application error: Mirror application document does not exist for &1 typically occurs in the context of the SAP Accounting and Financials module, particularly when dealing with the follow-up documents in the context of the Central Finance (CFIN) or similar scenarios.
  Cause:
  This error indicates that the system is unable to find a corresponding "mirror" application document for the specified document number (&1). This can happen due to several reasons:
  
  
  Missing Document: The mirror document that should exist in the target system (e.g., Central Finance) does not exist. This could be due to data transfer issues or if the document was not posted correctly.
  
  
  Incorrect Configuration: There may be configuration issues in the Central Finance setup or in the document mapping between the source and target systems.
  
  
  Data Replication Issues: There might be issues with the data replication process that prevents the mirror document from being created or updated.
  
  
  Document Deletion: The mirror document may have been deleted or archived in the target system.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Document Existence: Verify if the mirror document exists in the target system. You can do this by searching for the document number in the relevant transaction (e.g., FB03 for displaying documents).
  
  
  Review Data Replication Logs: Check the logs for the data replication process to identify any errors or issues that occurred during the transfer of documents from the source to the target system.
  
  
  Reprocess the Document: If the document is missing, you may need to reprocess the original document in the source system to ensure that it is replicated correctly to the target system.
  
  
  Configuration Review: Review the configuration settings in the Central Finance setup to ensure that the mapping and replication settings are correct.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error or provide guidance on troubleshooting. SAP Notes often contain patches or recommendations for known issues.
  
  
  Contact SAP Support: If the issue persists after performing the above checks, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the document number and any relevant logs.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB03 (Display Document), SLG1 (Application Log), and CFIN related transactions for Central Finance.
  Documentation: Review SAP documentation related to Central Finance and document replication processes for additional insights.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the error related to the missing mirror application document.