How To Fix O1304 - Unable to find customer master data for &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 304

• Message text: Unable to find customer master data for &

What causes this issue?

The system could not find any customer which is linked to the vendor
which was entered as an exchange partner.

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 if the vendor number entered is correct.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O1304 - Unable to find customer master data for & ?

  The SAP error message O1304, "Unable to find customer master data for &," typically indicates that the system is unable to locate the customer master data for a specific customer number or identifier. This can occur in various scenarios, such as during sales order processing, billing, or when trying to access customer-related information.
  Causes:
  
  Missing Customer Master Data: The customer master data may not have been created in the system for the specified customer number.
  Incorrect Customer Number: The customer number entered may be incorrect or mistyped.
  Data Deletion: The customer master data may have been deleted or archived.
  Data Inconsistency: There may be inconsistencies in the database or issues with data synchronization.
  Authorization Issues: The user may not have the necessary permissions to access the customer master data.
  
  Solutions:
  
  Verify Customer Number: Check the customer number for accuracy. Ensure that it is entered correctly and corresponds to an existing customer.
  Create Customer Master Data: If the customer does