How To Fix WU686 - Allocation material &1 for material &2 not allowed

WU686 - Overview

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 686

• Message text: Allocation material &1 for material &2 not allowed

What causes this issue?

Entered material "&v1&" is not an allowed allocation material for
material "&v2&".

How to fix this error?

You can display the allowed allocation materials using the input help.

Error message extract from SAP system. Copyright SAP SE.

WU686 - Details

• The SAP error message WU686, which states "Allocation material &1 for material &2 not allowed," typically occurs in the context of material allocation processes, particularly when dealing with allocation or distribution of materials in SAP systems. This error indicates that there is an issue with the allocation of a specific material (material &1) to another material (material &2).
  Causes:
  
  
  Incorrect Configuration: The allocation settings for the materials may not be properly configured in the system. This could include settings related to material types, allocation strategies, or other related parameters.
  
  
  Material Status: The material being allocated may have a status that does not allow it to be used for allocation. For example, it could be blocked for certain transactions or have a status that restricts its use.
  
  
  Material Master Data Issues: There may be inconsistencies or missing data in the material master records for either of the materials involved.
  
  
  Allocation Rules: The allocation rules defined in