How To Fix MW390 - Item & / material &: error & finding alloc rule

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 390

• Message text: Item & / material &: error & finding alloc rule

What causes this issue?

Item &V1& does not have an allocation rule.
The system tried to find an allocation rule for material &V2& and plant
group &V3&. This was when error &V4& occurred.
Key to the error numbers:
Error ,, Meaning
1 ,, Material &V1& not found
2 ,, Material group of material &V1& does not exist
3 ,, Material &V2&, plant group &V3& does not exist in Customizing
,, for allocation rule determination
4 ,, Item &V1& has not plant group
5 ,, Material group does not exist
6 ,, Plant group &V3& does not exist or appears more than once
7 ,, Material group not defined

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

System Response

INCLUDE ISR_VERARBEITUNG

How to fix this error?

Enter an allocation rule or maintain
<DS:SIMG.SIMG_CFMENUOLMDOMDQ>Allocation rule determination</> in
Customizing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW390 - Item & / material &: error & finding alloc rule ?

  The SAP error message MW390 ("Item & / material &: error & finding alloc rule") typically occurs in the context of inventory management or materials management when the system is unable to find a suitable allocation rule for a specific item or material. This can happen during various processes, such as stock transfers, goods movements, or when trying to create a delivery.
  Causes:
  
  Missing Allocation Rules: The most common cause is that there are no allocation rules defined for the specific material or item in the system.
  Incorrect Configuration: The configuration settings for the allocation rules may be incorrect or incomplete.
  Material Master Data Issues: The material master data may not be set up correctly, leading to issues in finding the allocation rules.
  Document Type Issues: The document type being used may not be compatible with the allocation rules defined.
  User Authorizations: The user may not have the necessary authorizations to access the allocation rules.
  
  Solutions:
  
  
  Define Allocation Rules: Check if allocation rules are defined for the material in question. If not, you will need to create them. This can typically be done in the configuration settings under the relevant module (e.g., Inventory Management).
  
  
  Review Configuration: Go through the configuration settings for allocation rules to ensure they are set up correctly. This may involve checking the settings in the IMG (Implementation Guide) under the relevant sections for inventory management or logistics.
  
  
  Check Material Master Data: Verify that the material master data is complete and accurate. Ensure that all necessary views (e.g., purchasing, sales, and storage) are properly maintained.
  
  
  Document Type Compatibility: Ensure that the document type you are using is compatible with the allocation rules. You may need to adjust the document type settings or use a different one.
  
  
  User Authorizations: Check the user roles and authorizations to ensure that the user has the necessary permissions to access and use the allocation rules.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as MM02 (Change Material), OMI4 (Define Allocation Rules), or SPRO (to access the IMG) to make the necessary changes.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Testing: After making changes, perform tests to ensure that the error no longer occurs and that the allocation rules are functioning as expected.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP documentation for further troubleshooting.