How To Fix DT169 - &: Type of the primary key changed on the database

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 169

• Message text: &: Type of the primary key changed on the database

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT169 - &: Type of the primary key changed on the database ?

  The SAP error message DT169, which states "Type of the primary key changed on the database," typically occurs when there is a mismatch between the data dictionary definitions in the SAP system and the actual database schema. This can happen due to various reasons, such as changes made directly in the database (outside of SAP), modifications to the data model, or inconsistencies during transport requests.
  Causes:
  
  Direct Database Changes: If someone has altered the primary key type directly in the database without updating the corresponding data dictionary in SAP, this error can occur.
  Transport Issues: If a transport request that includes changes to the data model is not properly imported, it can lead to inconsistencies.
  Database Migration: During a database migration or upgrade, if the primary key types are not correctly mapped, this error may arise.
  Development Changes: Changes made in the development environment that are not reflected in the production environment can lead to this issue.
  
  Solutions:
  
  Check Data Dictionary: Use transaction SE11 to check the data dictionary definition of the affected table. Ensure that the primary key type matches the database schema.
  Database Consistency Check: Run a consistency check on the database to identify any discrepancies. You can use transaction SE14 (Database Utility) to check and adjust the database structure.
  Transport Request Review: Review any recent transport requests that may have affected the data model. Ensure that all changes were properly imported and activated.
  Recreate the Table: If the issue persists, you may need to recreate the table in the SAP system. This can be done by deleting the table and then re-creating it, but this should be done with caution and typically in a development environment first.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on how to resolve it.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE03 (Transport Organizer), SE09 (Transport Organizer).
  SAP Notes: Always check for specific SAP Notes related to your version of SAP and the error message. These notes can provide tailored solutions or workarounds.
  Backup: Before making any changes, ensure that you have a backup of your data and configurations to prevent data loss.
  
  If the issue is complex or if you are unsure about making changes, it is advisable to consult with your SAP Basis team or SAP support for assistance.