How To Fix W#155 - Purchase order items are not assigned to the same warehouse number

SAP Error Message - Details

• Message type: E = Error

• Message class: W# -

• Message number: 155

• Message text: Purchase order items are not assigned to the same warehouse number

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W#155 - Purchase order items are not assigned to the same warehouse number ?

  The SAP error message W#155 indicates that the purchase order items are not assigned to the same warehouse number. This typically occurs when you are trying to create or process a purchase order that includes items that are intended for different storage locations or warehouses, which is not allowed in certain configurations of SAP.
  Cause:
  
  Different Warehouse Numbers: The items in the purchase order are linked to different warehouse numbers. Each item in the order must be associated with the same warehouse for the order to be processed.
  Configuration Settings: The system may be configured to require that all items in a purchase order must belong to the same warehouse.
  Master Data Issues: The material master data for the items may have different warehouse assignments, leading to this error.
  
  Solution:
  
  Check Warehouse Assignments: Review the purchase order items and check their respective warehouse assignments. Ensure that all items are assigned to the same warehouse.
  Modify Purchase Order: If the items are meant to be sourced from different warehouses, consider creating separate purchase orders for each warehouse.
  Update Material Master Data: If necessary, update the material master data to ensure that the items are assigned to the correct warehouse.
  Consult Configuration: If you have access to system configuration, check the settings related to purchase orders and warehouse management to see if there are any restrictions that can be adjusted.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting the SAP Help Portal for further assistance.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like ME21N (Create Purchase Order) or ME22N (Change Purchase Order) to review and modify purchase orders.
  Material Master Data: Use transaction code MM03 to view material master data and check the warehouse assignments.
  Warehouse Management: If your organization uses SAP Warehouse Management (WM), ensure that the warehouse settings are correctly configured to allow for the intended operations.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.