How To Fix O1900 - Delivery vendor is different from main vendor

SAP Error Message - Details

• Message type: E = Error

• Message class: O1 - IS-Oil : Message pool exchanges

• Message number: 900

• Message text: Delivery vendor is different from main vendor

Self-Explanatory Message

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• What is the cause and solution for SAP error message O1900 - Delivery vendor is different from main vendor ?

  The SAP error message O1900, which states "Delivery vendor is different from main vendor," typically occurs in the context of procurement and logistics when there is a mismatch between the vendor specified for a delivery and the main vendor associated with the purchase order or contract.
  Cause:
  
  Vendor Mismatch: The delivery is being processed with a vendor that is not the same as the one specified in the purchase order (PO) or contract.
  Subcontracting: In cases where subcontracting is involved, the delivery vendor may be a subcontractor, which can lead to this error if not properly configured.
  Incorrect Master Data: The vendor master data may not be set up correctly, leading to discrepancies between the main vendor and the delivery vendor.
  Purchase Order Configuration: The purchase order may have been created with a specific vendor, and the delivery is being attempted with a different vendor.
  
  Solution:
  
  Verify Vendor Information: Check the purchase order and ensure that the vendor specified matches the delivery vendor. If they are different, you may need to update the purchase order or the delivery details.
  Adjust Delivery Vendor: If the delivery is intended to come from a different vendor, you may need to adjust the delivery vendor in the system to match the main vendor on the purchase order.
  Review Subcontracting Settings: If subcontracting is involved, ensure that the subcontractor is correctly set up in the system and that the purchase order reflects this relationship.
  Update Master Data: Ensure that the vendor master data is accurate and up-to-date. This includes checking the vendor's address, contact information, and any relevant purchasing information.
  Consult with Procurement Team: If you are unsure about the correct vendor to use, consult with your procurement or purchasing team to clarify which vendor should be used for the delivery.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as ME23N (Display Purchase Order) or ME21N (Create Purchase Order) to review and edit purchase orders.
  Vendor Master Data: Use transaction code XK03 (Display Vendor) to check the details of the vendor master data.
  Subcontracting Process: Familiarize yourself with the subcontracting process in SAP if applicable, as it may involve specific configurations and settings.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message, as there may be known issues or fixes provided by SAP.
  
  By following these steps, you should be able to resolve the O1900 error and ensure that your procurement processes run smoothly.