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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message 0A102 - Default program &1 / &2 already supplies a hierarchy for &3 ?

  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 can do this by navigating to the relevant transaction or using the appropriate reports to view the hierarchy assignments.
  Remove or Modify Existing Hierarchy: If the existing hierarchy is no longer needed, you can remove it or modify it to accommodate the new hierarchy you are trying to assign.
  Use Correct Program: Ensure that you are using the correct program or transaction to assign the hierarchy. Sometimes, using a different program may resolve the issue.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on managing hierarchies in your version of SAP.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: Depending on the module you are working with (e.g., SAP BW, SAP S/4HANA), different transaction codes may be relevant for managing hierarchies (e.g., RSA1 for BW).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.