How To Fix 0A102 - Default program &1 / &2 already supplies a hierarchy for &3

0A102 - Overview

• Message type: E = Error

• Message class: 0A - IM -> BW: Extractors

• Message number: 102

• Message text: Default program &1 / &2 already supplies a hierarchy for &3

What causes this issue?

The program &V1& / &V2& is already defined in the current OLTP for BW
program &V3& / &V2&.
This program is automatically hierarchy-bearing.
However, only one hierarchy-bearing OLTP program can exist for a BW
program.

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

Background
A program with four-character name that is not in this table is
automatically considered to be hierarchy-bearing.
<DS:DE.BIW_MAIN>Flag: Hierarchy-bearing</>

System Response

The entry cannot be created.

How to fix this error?

Define the program &V1& / &V2& as non-hierarchy-bearing with a
Customizing entry or change the current entry.

Error message extract from SAP system. Copyright SAP SE.

0A102 - Details

• The SAP error message 0A102 indicates that there is an issue with the hierarchy assignment in the system. Specifically, it means that the default program specified (indicated by &1 and &2) already provides a hierarchy for the object or entity identified by &3. This typically occurs in scenarios where you are trying to assign a hierarchy to a master data object that already has an existing hierarchy defined by the system.
  
  Cause:
  
  Duplicate Hierarchy Assignment: The error is triggered when there is an attempt to assign a new hierarchy to an object that already has a hierarchy assigned to it.
  
  Configuration Issues: There may be a misconfiguration in the hierarchy settings or in the way the master data is being managed.
  Data Migration Issues: If data has been migrated from another system, it may have resulted in duplicate hierarchies being created.
  
  
  Solution:
  
  Check Existing Hierarchies: Review the existing hierarchies assigned to the object in question. You