How To Fix AD271 - Check table cannot be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 271

• Message text: Check table cannot be deleted

What causes this issue?

You did not specify a check table for a foreign key.

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?

Definition of a check table is mandatory for a foreign key.
If you wanted to delete the foreign key, please activate the "delete"
function in the foreign key display.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD271 - Check table cannot be deleted ?

  The SAP error message AD271, which states "Check table cannot be deleted," typically occurs when you attempt to delete a check table that is still being referenced by other database objects or is part of a data model that is in use. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Active References: The check table is still being referenced by foreign key relationships in other tables.
  Data Model Dependencies: The check table is part of a data model that is currently in use, such as being linked to a domain or data element.
  Data Integrity Constraints: SAP enforces data integrity, and deleting a check table that is still in use would violate these constraints.
  
  Solutions:
  
  
  Identify Dependencies:
  
  Use transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to check for foreign key relationships that reference the check table.
  Look for any domains or data elements that might be linked to the check table.
  
  
  
  Remove References:
  
  If you find any foreign key relationships, you will need to remove or modify them before you can delete the check table.
  This may involve altering the related tables to drop the foreign key constraints.
  
  
  
  Check for Active Usage:
  
  Ensure that there are no active programs, reports, or transactions that are currently using the check table.
  If the check table is part of a data model, consider whether it can be safely removed without impacting other components.
  
  
  
  Transport Requests:
  
  If the check table is part of a transport request, ensure that the transport is not currently in use or has been released.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP Basis or ABAP team for guidance on safely removing check tables.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE37 (Function Builder), SE80 (Object Navigator).
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for this error.
  Data Dictionary: Familiarize yourself with the Data Dictionary in SAP, as it provides essential information about tables, fields, and relationships.
  
  Best Practices:
  
  Always back up your data and ensure that you have a rollback plan before making changes to the database schema.
  Test changes in a development or quality assurance environment before applying them to production.
  Document any changes made to the database schema for future reference.
  
  By following these steps, you should be able to resolve the AD271 error and successfully delete the check table if it is no longer needed.