How To Fix MW604 - &1 &2: enter a plant group for system to find allocation rule

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 604

• Message text: &1 &2: enter a plant group for system to find allocation rule

What causes this issue?

You selected an item in which no plant group has been entered.

System Response

The system requires a plant group before it can find an allocation
rule.

How to fix this error?

Enter a plant group and repeat the search.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW604 - &1 &2: enter a plant group for system to find allocation rule ?

  The SAP error message MW604 indicates that the system requires a plant group to find the allocation rule for a specific transaction or process. This error typically occurs in the context of inventory management, material requirements planning (MRP), or when dealing with stock transfers.
  Cause:
  The error message MW604 is triggered when:
  
  Missing Plant Group: The plant group is not defined in the configuration or is not assigned to the relevant material or transaction.
  Configuration Issues: The allocation rules for the specified plant group are not set up correctly in the system.
  Data Entry Error: The user may have forgotten to enter the plant group in the relevant field during the transaction.
  
  Solution:
  To resolve the MW604 error, you can take the following steps:
  
  
  Check Plant Group Assignment:
  
  Go to the relevant configuration settings in SAP (usually in SPRO) and ensure that the plant group is defined and assigned correctly to the materials or transactions you are working with.
  
  
  
  Define Allocation Rules:
  
  Ensure that allocation rules are defined for the plant group in question. This can typically be done in the configuration settings under the relevant module (e.g., Inventory Management or MRP).
  
  
  
  Enter Plant Group:
  
  If you are entering data manually, ensure that you have filled in the plant group field correctly in the transaction screen where the error occurred.
  
  
  
  Check Material Master Data:
  
  Verify that the material master data includes the correct plant group information. You can do this by checking the material master record (transaction MM03).
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to the specific transaction or process you are working on for additional guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), SPRO (Customizing), and others that may help in troubleshooting.
  SAP Notes: Search for SAP Notes related to MW604 for any specific fixes or updates that may address the issue.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to access and modify the plant group settings.
  
  By following these steps, you should be able to identify and resolve the cause of the MW604 error in your SAP system.