How To Fix O1891 - Vendor and exchange partner do not match.

O1891 - Overview

• Message type: E = Error

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

• Message number: 891

• Message text: Vendor and exchange partner do not match.

What causes this issue?

The exchange agreement was made with and is valid for a business
partner other than the vendor.

System Response

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

How to fix this error?

Check the number of the exchange agreement and the number of the
vendor.

Error message extract from SAP system. Copyright SAP SE.

O1891 - Details

• The SAP error message O1891, which states "Vendor and exchange partner do not match," typically occurs in the context of electronic data interchange (EDI) or when processing transactions that involve vendors and their corresponding exchange partners. This error indicates a mismatch between the vendor information and the exchange partner information in the system.
  
  Cause:
  
  
  Configuration Issues: The vendor master data may not be correctly configured to match the exchange partner data. This can happen if the vendor is not set up with the correct EDI information.
  Data Entry Errors: There may be a typographical error in the vendor or exchange partner information, leading to a mismatch.
  Inconsistent Master Data: The vendor and exchange partner records may not be synchronized, leading to discrepancies in the data.
  Incorrect Partner Profile: The partner profile for the vendor may not be correctly defined in the EDI settings, causing the system to not recognize the vendor as a valid exchange