How To Fix GR637 - Report group will be regenerated (data remains)

SAP Error Message - Details

• Message type: E = Error

• Message class: GR - Report Writer

• Message number: 637

• Message text: Report group will be regenerated (data remains)

What causes this issue?

The Report Writer programs have been changed or developed. This means
that the report groups you have already generated are no longer
up-to-date and need to be regenerated. The data you stored permanently
at selection is retained when you regenerate, and can be further
analyzed.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

The system regenerates the report group automatically when you
acknowledge the warning.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GR637 - Report group will be regenerated (data remains) ?

  The SAP error message GR637, which states "Report group will be regenerated (data remains)," typically occurs in the context of report generation or report group management within the SAP system. This message indicates that the report group is being regenerated, but the existing data will remain intact.
  Cause:
  
  Changes in Report Group Configuration: The report group may have been modified, leading the system to regenerate it to reflect the new configuration.
  System Updates or Changes: Updates to the SAP system or changes in the underlying data structure can trigger the regeneration of report groups.
  Data Consistency Checks: The system may perform checks to ensure data consistency, prompting a regeneration of the report group.
  
  Solution:
  
  Review Report Group Configuration: Check the configuration of the report group to ensure that it is set up correctly. Look for any recent changes that may have triggered the regeneration.
  Monitor System Logs: Check the system logs for any additional error messages or warnings that may provide more context about why the regeneration is occurring.
  Re-run the Report: After the regeneration, try re-running the report to see if the issue persists. The regeneration process should not affect the existing data, but it’s good to verify.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the report group in question.
  Contact SAP Support: If the issue continues or if you need further assistance, consider reaching out to SAP support for help.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with transaction codes related to report groups, such as GR55 (Report Painter) or GRR1 (Report Group Management).
  User Permissions: Ensure that you have the necessary permissions to modify or regenerate report groups, as insufficient permissions can lead to unexpected behavior.
  
  In summary, while the GR637 message indicates that a report group is being regenerated, it is generally not a critical error. However, it is advisable to investigate the underlying cause and ensure that the report functions as expected after the regeneration.