How To Fix M2628 - Primary key for DB table & was not converted!

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 628

• Message text: Primary key for DB table & was not converted!

What causes this issue?

The sequence of the primary key fields for the database table &V1&
should be changed as a result of the settings. Problems, however, have
occurred (Reason &V2&).
Possible causes for the problems:
No DB table exists (Reason 1).
The DB table belonging to the information structure still contains data
in one of the system clients (Reason 2).
The DB table could not be created (Reason 3).
The DB table could not be activated (Reason 4).

System Response

The primary key for the database table &V1& belonging to the
information structure &V1& was not converted.

How to fix this error?

Reasons 1, 3, 4: Check the status of table &V1& in the data dictionary
(TA SE11).
Reason 2: Check to see if the DB table &V1& still contains data in a
client. If this data is no longer needed, then the table (and thus the
dataset) can be deleted with the database utility (TA SE14).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2628 - Primary key for DB table & was not converted! ?

  The SAP error message M2628, which states "Primary key for DB table & was not converted," typically occurs during a database migration or upgrade process. This error indicates that the primary key of a database table could not be converted properly, which can lead to issues with data integrity and application functionality.
  Causes:
  
  Database Schema Changes: The primary key definition in the database schema may have changed, and the system is unable to map the old primary key to the new structure.
  Data Inconsistencies: There may be inconsistencies or corruption in the data that prevent the primary key from being converted.
  Missing Dependencies: Related tables or dependencies may not have been properly migrated or updated, leading to issues with the primary key.
  Version Compatibility: The version of the database or the SAP system may not be compatible with the expected primary key structure.
  
  Solutions:
  
  Check Database Logs: Review the database logs for more detailed error messages that can provide insight into why the primary key conversion failed.
  Data Consistency Check: Run consistency checks on the database to identify and resolve any data inconsistencies that may be affecting the primary key.
  Manual Adjustment: If necessary, manually adjust the primary key definition in the database to match the expected structure. This may involve altering the table schema or updating the data.
  Re-run Migration: If the error occurred during a migration process, consider re-running the migration after addressing any identified issues.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  Consult Documentation: Review the documentation for the specific version of SAP you are using to ensure that all steps for migration or upgrade have been followed correctly.
  
  Related Information:
  
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide guidance based on the specific context of your system.
  Backup: Always ensure that you have a complete backup of your database before making any changes or running migrations.
  Testing Environment: If possible, replicate the issue in a testing environment to troubleshoot without affecting the production system.
  
  By following these steps, you should be able to identify the cause of the M2628 error and implement a solution to resolve it.