How To Fix /SCWM/HU_WM159 - Mixed storage in HU for storage type &1 failed due to BAdI implementation

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/HU_WM -

• Message number: 159

• Message text: Mixed storage in HU for storage type &1 failed due to BAdI implementation

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/HU_WM159 - Mixed storage in HU for storage type &1 failed due to BAdI implementation ?

  The SAP error message /SCWM/HU_WM159 indicates that there is an issue with mixed storage in Handling Units (HUs) for a specific storage type due to a BAdI (Business Add-In) implementation. This error typically arises in the context of Warehouse Management (WM) or Extended Warehouse Management (EWM) when the system is trying to store different types of products in the same Handling Unit, but the BAdI implementation has restrictions or conditions that prevent this.
  Cause:
  
  BAdI Implementation: The error is often caused by a custom BAdI implementation that restricts mixed storage in Handling Units. This could be due to business rules that do not allow different product types to be stored together in the same HU.
  Configuration Settings: The configuration settings for the storage type may not allow mixed storage, or there may be specific conditions defined in the BAdI that are not being met.
  Product Characteristics: The products being stored may have characteristics (like batch management, serial numbers, etc.) that prevent them from being mixed in the same HU.
  
  Solution:
  
  
  Review BAdI Implementation: Check the custom BAdI implementation related to mixed storage. You may need to modify the logic to allow mixed storage if it is appropriate for your business process.
  
  Use transaction code SE18 to find the BAdI and SE19 to implement or adjust it.
  
  
  
  Check Storage Type Configuration: Review the configuration of the storage type in the Warehouse Management settings to ensure that mixed storage is allowed.
  
  Use transaction code SPRO to navigate to the relevant configuration settings.
  
  
  
  Product Master Data: Ensure that the product master data does not have restrictions that would prevent mixed storage. Check for any settings related to handling units, batch management, or other relevant characteristics.
  
  
  Testing: After making changes, perform tests to ensure that the mixed storage functionality works as expected without triggering the error.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific BAdI and mixed storage functionality for additional insights or known issues.
  
  
  Related Information:
  
  BAdI Documentation: Look for SAP notes or documentation that describe the specific BAdI being used and its intended functionality.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if the BAdI implementation is complex or critical to your operations.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution that allows for mixed storage in Handling Units as needed.