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

AD871 - Overview

• 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