How To Fix AD871 - Index & exists in database but not in ABAP Dictionary (inconsistency)

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 871

• Message text: Index & exists in database but not in ABAP Dictionary (inconsistency)

What causes this issue?

No corresponding entry in the ABAP/4 Dictionary exists for a database
index (secondary index).

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?

Such indexes can be deleted with the database utility if this is
required. No other processing type is possible.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD871 - Index & exists in database but not in ABAP Dictionary (inconsistency) ?

  The SAP error message AD871 indicates that there is an inconsistency between the database and the ABAP Dictionary regarding an index. Specifically, it means that an index exists in the database but is not defined in the ABAP Dictionary. This can lead to issues with data access and performance, as the system relies on the ABAP Dictionary to manage database objects.
  Cause
  The inconsistency can arise from several scenarios:
  
  Manual Changes: Direct modifications to the database (e.g., using SQL commands) that bypass the ABAP Dictionary can create discrepancies.
  Transport Issues: If an index was created in one system and not properly transported to another system, it may exist in the database but not in the ABAP Dictionary.
  Database Migration: During a database migration or upgrade, certain objects may not be correctly updated or migrated.
  Development Errors: Errors during development or changes in the data model that were not properly reflected in the ABAP Dictionary.
  
  Solution
  To resolve the AD871 error, you can follow these steps:
  
  
  Check the Index: Use transaction code SE11 (Data Dictionary) to check the definition of the table and see if the index is listed there. If it is not, you may need to create it in the ABAP Dictionary.
  
  
  Recreate the Index:
  
  If the index is missing in the ABAP Dictionary, you can create it using transaction SE11.
  Ensure that the index definition matches the existing index in the database.
  
  
  
  Delete the Index:
  
  If the index is not needed, you can drop it from the database using transaction SE14 (Database Utility) or directly through SQL commands (if you have the necessary permissions).
  After dropping the index, ensure that the ABAP Dictionary is updated accordingly.
  
  
  
  Consistency Check:
  
  Use transaction SE14 to perform a consistency check on the database objects. This can help identify other inconsistencies and provide options to repair them.
  
  
  
  Transport Management:
  
  If the inconsistency is due to transport issues, ensure that all relevant objects are included in the transport requests and that they are properly imported into the target system.
  
  
  
  Consult Documentation: Review SAP Notes and documentation related to the specific version of SAP you are using, as there may be specific recommendations or tools provided by SAP for resolving such inconsistencies.
  
  
  Related Information
  
  
  Transaction Codes:
  
  SE11: Data Dictionary
  SE14: Database Utility
  SE80: Object Navigator (for checking related objects)
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to AD871 or database inconsistencies.
  
  
  Backup: Always ensure that you have a backup of your database before making any changes, especially when dropping or creating indexes.
  
  
  Testing: After making changes, thoroughly test the affected applications to ensure that performance and functionality are as expected.
  
  
  By following these steps, you should be able to resolve the AD871 error and restore consistency between the database and the ABAP Dictionary.