How To Fix GL001 - An internal error has occurred during the blocking attempt

GL001 - Overview

• Message type: E = Error

• Message class: GL - FI-SL Rollup

• Message number: 001

• Message text: An internal error has occurred during the blocking attempt

What causes this issue?

The blocking processor has abended with a system error. One possible
reason is that the blocking table is full.

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.

GL001 - Details

• The SAP error message GL001, which states "An internal error has occurred during the blocking attempt," typically indicates that there is an issue with the system's ability to block a document or transaction. This error can arise from various underlying causes, and addressing it often requires a systematic approach. Here are some potential causes, solutions, and related information:
  Causes:
  
  Database Lock Issues: There may be a problem with database locks that prevent the system from blocking the document.
  Configuration Errors: Incorrect configuration settings in the SAP system can lead to this error.
  System Bugs: There may be bugs in the SAP software that cause this error to occur under certain conditions.
  Authorization Issues: The user may not have the necessary authorizations to perform the blocking operation.
  Data Integrity Issues: Corrupted or inconsistent data in the database can lead to internal errors.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction codes like SM21) for more detailed error messages