How To Fix EP657 - Postings before and after migration key date. Contact SAP.

SAP Error Message - Details

• Message type: E = Error

• Message class: EP - Messages for Posting Area

• Message number: 657

• Message text: Postings before and after migration key date. Contact SAP.

Self-Explanatory Message

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• What is the cause and solution for SAP error message EP657 - Postings before and after migration key date. Contact SAP. ?

  The SAP error message EP657, which states "Postings before and after migration key date," typically occurs during the migration process when there are inconsistencies in the posting dates of transactions relative to the migration key date. This error indicates that there are postings that are either before or after the specified migration key date, which can lead to issues in data integrity and reporting.
  Cause:
  
  
  Inconsistent Posting Dates: Transactions have been posted in the system that fall outside the defined migration key date. This can happen if:
  
  Transactions were posted after the migration key date.
  Historical data was not properly archived or cleaned up before migration.
  There are open periods in the system that allow postings outside the intended migration window.
  
  
  
  Configuration Issues: The migration key date may not be set correctly in the system, or the configuration for the migration process may not align with the actual data.
  
  
  Data Migration Errors: During the data migration process, if the data is not correctly filtered or validated against the migration key date, it can lead to this error.
  
  
  Solution:
  
  
  Review Posting Dates: Check the transaction postings in the system to identify any that fall outside the migration key date. You can use transaction codes like FB03 (Display Document) or FBL1N (Vendor Line Item Display) to review postings.
  
  
  Adjust Migration Key Date: If appropriate, consider adjusting the migration key date to encompass the necessary postings. However, this should be done with caution and in consultation with your SAP functional team.
  
  
  Archive or Delete Old Transactions: If there are unnecessary historical transactions that are causing the issue, consider archiving or deleting them if they are no longer needed.
  
  
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  
  
  Contact SAP Support: If the issue persists after reviewing and adjusting the postings, it may be necessary to contact SAP support for further assistance. Provide them with detailed information about the error, including the context in which it occurs and any steps you have already taken to resolve it.
  
  
  Related Information:
  
  Migration Key Date: This is a critical date in the migration process that defines the cut-off for data that will be migrated to the new system. It is essential to ensure that all relevant transactions are accounted for before this date.
  Data Migration Best Practices: Follow best practices for data migration, including thorough testing, validation of data, and ensuring that all stakeholders are aware of the migration key date and its implications.
  SAP Documentation: Refer to SAP's official documentation for guidelines on data migration and handling specific error messages.
  
  By addressing the root causes and following the suggested solutions, you should be able to resolve the EP657 error and proceed with your migration process.