How To Fix RSDODSO165 - DataStore object &1 (master data check) must not contain char. &2 in key

RSDODSO165 - Overview

• Message type: E = Error

• Message class: RSDODSO - Messages for ODS Objects

• Message number: 165

• Message text: DataStore object &1 (master data check) must not contain char. &2 in key

What causes this issue?

DataStore object &V1& has been designated as check object for the master
data of characteristic &V3&. DataStore object &V1& must therefore have
the same key as the characteristic.
Characteristic &V2& is in the key of the DataStore object, but not in
the compound of characteristic &V3& that needs to be checked.

System Response

This is only a warning - you are still able to activate characteristic
&V3&.

How to fix this error?

Add characteristic &V2& to the compound of characteristic &V3& or remove
the characteristic from the key part of the DataStore object.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDODSO165 - DataStore object &1 (master data check) must not contain char. &2 in key ?

  The SAP error message RSDODSO165 indicates that there is an issue with a DataStore Object (DSO) in SAP BW (Business Warehouse) where a character (field) that is part of the key structure is not allowed in the master data check. This typically occurs when the DSO is configured to use certain characteristics as keys, and one of those characteristics is not suitable for the master data.
  
  Cause:
  
  Key Definition Issue: The DSO is defined with a key that includes a characteristic that is not allowed for master data. In SAP BW, certain characteristics are expected to be used as keys in specific contexts, and if a characteristic is not defined correctly, it can lead to this error.
  Data Model Misconfiguration: The DSO may be incorrectly configured in terms of its data model, leading to the inclusion of a characteristic that should not be part of the key.
  Master Data vs. Transaction Data: The error