How To Fix GG647 - The installation of table & cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: GG - Messages for FI-SL customizing

• Message number: 647

• Message text: The installation of table & cannot be changed

What causes this issue?

Tables GLT0, GLT1 and GLT2, as well as line item tables GLS1 and GLS2
are delivered as SAP standard tables. You cannot modify the
installation of these tables using this transaction. There are also
several tables (for example, GLREFT, GLTO1) that are delivered as
standard example tables only and you cannot therefore install these
tables.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GG647 - The installation of table & cannot be changed ?

  The SAP error message GG647, which states "The installation of table & cannot be changed," typically occurs when there is an attempt to modify a table that is either in a locked state or has been installed in a way that prevents changes. This can happen during various operations, such as when trying to adjust the structure of a database table or during a transport request.
  Causes:
  
  Table Locking: The table may be locked due to ongoing transactions or processes that are currently using it.
  Transport Issues: The table might be part of a transport request that is not yet released or is in a state that prevents changes.
  Database Constraints: There may be database-level constraints or settings that prevent modifications to the table.
  Development Environment: If you are working in a development environment, the table might be in a state that is not allowing changes due to system settings or configurations.
  
  Solutions:
  
  Check Table Lock: Use transaction code SM12 to check for any locks on the table. If there are locks, you may need to wait for the processes to complete or manually unlock them if appropriate.
  Review Transport Requests: Check if the table is part of a transport request that is still in the "modification" state. You may need to release the transport request or ensure that it is not being used elsewhere.
  Database Administration: Consult with your database administrator to check for any database-level constraints or settings that might be preventing changes to the table.
  Development Settings: If you are in a development environment, ensure that the system settings allow for changes to the table. You may need to adjust the configuration or consult with your system administrator.
  Use SE11/SE14: If you are trying to modify the table structure, use transaction codes SE11 (Data Dictionary) or SE14 (Database Utility) to check the table's status and make necessary adjustments.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message. SAP frequently updates its knowledge base with solutions for common issues.
  Documentation: Review the SAP documentation for the specific module or area you are working in, as there may be additional context or considerations for modifying tables.
  Community Forums: Consider searching or posting in SAP community forums or discussion groups, as other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.