How To Fix DT518 - Index &-& is not in the customer namespace

DT518 - Overview

• Message type: E = Error

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

• Message number: 518

• Message text: Index &-& is not in the customer namespace

What causes this issue?

In a target system (customer system), a new index was created whose
name does not lie in the namespace Y or Z.
The namespaces Y and Z are reserved for extensions in target systems.

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?

Keep the <DS:TX.DDDOK_INDEX_NAMESPACE>namespaces for indexes</> in
mind.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT518 - Index &-& is not in the customer namespace ?

  The SAP error message DT518 indicates that the index you are trying to access or manipulate is not located in the customer namespace. This typically occurs when you are working with database indices in SAP and trying to reference an index that is either part of the standard SAP system or does not exist in the expected namespace.
  
  Cause:
  
  Non-Customer Namespace: The index you are trying to use is part of the SAP standard objects and not defined in the customer namespace (which is usually reserved for custom developments).
  Index Deletion or Renaming: The index may have been deleted or renamed, leading to the system not being able to find it.
  Transport Issues: If the index was created in a different system and not properly transported to the current system, it may not exist in the current environment.
  Development Environment: If you are working in a development environment, the index may not have been created