How To Fix MW146 - Either allocate at least 1 plant a quota or define AR as a model

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 146

• Message text: Either allocate at least 1 plant a quota or define AR as a model

What causes this issue?

You have not assigned any plant in the allocation rule a quota.

System Response

Consistency error.

How to fix this error?

Assign a quota to at least one plant in the allocation rule.
If you want to create a model allocation rule, set the model allocation
rule indicator.

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 MW146 - Either allocate at least 1 plant a quota or define AR as a model ?

  The SAP error message MW146 indicates that there is an issue with the quota arrangement for materials in the system. Specifically, it suggests that either no plant has been allocated a quota for the material, or the material is not defined as a model in the system. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  No Plant Allocation: The material in question does not have any plants assigned to it in the quota arrangement. This means that the system does not know where to allocate the stock or how to manage the inventory for that material.
  
  
  Model Definition: The material may not be defined as a model (AR - Allocation Rule) in the system. This is necessary for the system to understand how to handle the material's allocation.
  
  
  Solutions:
  
  
  Allocate a Plant:
  
  Go to the transaction code MD61 (Create Planning) or MD02 (MDM - Material Requirements Planning).
  Check the quota arrangement for the material and ensure that at least one plant is assigned to it.
  If no plant is assigned, you will need to create a quota arrangement for the material and assign at least one plant.
  
  
  
  Define as Model:
  
  If the material needs to be defined as a model, you can do this in the material master record.
  Use transaction code MM02 (Change Material) to access the material master.
  Navigate to the relevant views (like MRP or Purchasing) and ensure that the material is set up correctly as a model.
  
  
  
  Check Quota Arrangement:
  
  Use transaction code MD04 (Stock/Requirements List) to check the current quota arrangements for the material.
  Ensure that the quota is correctly defined and that it meets the requirements of your planning strategy.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to quota arrangements and allocation rules for further guidance on how to set these up correctly.
  
  
  
  Related Information:
  
  
  Quota Arrangement: This is a method used in SAP to manage the allocation of stock among different plants or vendors. It is essential for materials that are sourced from multiple locations or suppliers.
  
  
  Material Master: The material master record contains all the information about a material that is required to manage it throughout its lifecycle in the system.
  
  
  Transaction Codes:
  
  MD61: Create Planning
  MD02: MRP Run
  MM02: Change Material
  MD04: Stock/Requirements List
  
  
  
  By following these steps, you should be able to resolve the MW146 error and ensure that your material is properly configured in the SAP system. If issues persist, consider reaching out to your SAP support team for further assistance.