How To Fix /CFG/MIGRATION126 - Activity &1 Assignment of Building Block &2 migration failed

/CFG/MIGRATION126 - Overview

• Message type: E = Error

• Message class: /CFG/MIGRATION -

• Message number: 126

• Message text: Activity &1 Assignment of Building Block &2 migration failed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /CFG/MIGRATION126 - Activity &1 Assignment of Building Block &2 migration failed ?

  The SAP error message /CFG/MIGRATION126 Activity &1 Assignment of Building Block &2 migration failed typically occurs during the migration of configuration settings or data in the SAP system, particularly when dealing with the Configuration Management (CFG) or similar modules. This error indicates that there was a failure in the assignment of a building block during the migration process.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the data being migrated, such as missing or incorrect references to building blocks.
  
  Configuration Issues: The configuration settings for the building blocks may not be correctly set up or may be incompatible with the current system settings.
  Authorization Issues: The user performing the migration may not have the necessary authorizations to perform the assignment of the building block.
  Technical Errors: There could be underlying technical issues, such as database connectivity problems or system resource limitations.
  
  Solutions:
  
  Check Data Consistency: Review the data being migrated to ensure that all necessary references and