How To Fix SAUL_ATC_CHECKS002 - Index ID '&1' is transformed during an upgrade to '^&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SAUL_ATC_CHECKS - Upgrade ATC Checks

• Message number: 002

• Message text: Index ID '&1' is transformed during an upgrade to '^&2'

What causes this issue?

The name of a secondary index of a database table in the ABAP Dictionary
may have 18 characters at most. It consists of the database table name
and an index ID with up to 3 characters. Database tables whose name
consist of 16 characters may cause problems during an upgrade <ZH>for
the following reason</>:
During an upgrade, the system generates shadow tables and adds to their
index name an additional single delimiter (~ or ^).
Table name &V3& consists of 16 characters and index ID '&V1&' will be
shortened to '^&V2&' for the shadow table to the index name &V3&^&V2&.
This collides with the name of the further secondary index &V3&^&V2& to
which index ID '&V4&' will be shortened for the shadow table.

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?

Choose the ID of the secondary index so that it is unique for the shadow
table during the upgrade procedure

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SAUL_ATC_CHECKS002 - Index ID '&1' is transformed during an upgrade to '^&2' ?

  The SAP error message SAUL_ATC_CHECKS002 indicates that an index with the specified ID (&1) is being transformed during an upgrade to a new version (^&2). This typically occurs when there are changes in the database structure or the way indexes are managed in the new version of SAP.
  Cause:
  
  Database Structure Changes: The upgrade may involve changes to the underlying database schema, which can include modifications to how indexes are defined or utilized.
  Index Optimization: SAP may have optimized certain indexes for performance reasons, leading to changes in their definitions or the way they are applied.
  Compatibility Issues: The index may not be compatible with the new version of SAP, necessitating a transformation to ensure it functions correctly.
  
  Solution:
  
  Review Upgrade Documentation: Check the release notes and upgrade documentation provided by SAP for the specific version you are upgrading to. This documentation often includes information about changes to indexes and database structures.
  Run Database Migration Tools: If applicable, use SAP's database migration tools or transaction codes (like SAPHANA_MIGRATION for HANA databases) to assist with the transformation of indexes.
  Check for Custom Code: If you have custom code that relies on specific index structures, review and adjust it as necessary to accommodate the changes.
  Monitor Performance: After the upgrade, monitor the performance of the affected areas to ensure that the new index structure is functioning as expected.
  Consult SAP Support: If the issue persists or if you encounter further complications, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that address this specific error message or provide guidance on index transformations during upgrades.
  Transaction Codes: Familiarize yourself with transaction codes related to database management and index maintenance, such as SE11 (Data Dictionary) and SE14 (Database Utility).
  Testing: Always perform thorough testing in a development or quality assurance environment before applying upgrades to production systems to identify and resolve issues like this in advance.
  
  By following these steps, you should be able to address the error message and ensure a smooth upgrade process.