How To Fix CVI_FS_CHECK_CUST031 - Vendor -> BP: Numbers assigned externally with "Same Numbers" only

CVI_FS_CHECK_CUST031 - Overview

• Message type: E = Error

• Message class: CVI_FS_CHECK_CUST -

• Message number: 031

• Message text: Vendor -> BP: Numbers assigned externally with "Same Numbers" only

What causes this issue?

If you want to assign numbers for the business partner externally, you
must set the "Same Numbers" checkbox to ensure that a number cannot be
specified when the user creates a vendor for the business partner.

System Response

At present, data cannot be synchronized from the vendor to the business
partner.

How to fix this error?

In the Customizing activity <DS:SIMG.CVIV_VEND_TO_BP1>Define Number
Assignment for Direction Vendor to BP</>, you must set the "Same
Numbers" checkbox if the numbers for the business partner are assigned
externally.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

CVI_FS_CHECK_CUST031 - Details

• The SAP error message CVI_FS_CHECK_CUST031 typically occurs during the process of creating or updating a Business Partner (BP) in the context of Customer-Vendor Integration (CVI). This error indicates that there is an issue with the assignment of external numbers for vendors and business partners, specifically when the system detects that the same external number is being used for multiple entities.
  
  Cause:
  The error arises when:
  
  You are trying to create or update a Business Partner (BP) that is linked to a vendor, and the external number assigned to the vendor is already in use by another Business Partner or vendor.
  The system enforces a rule that prevents the assignment of the same external number to multiple entities to maintain data integrity.
  
  
  Solution:
  To resolve the CVI_FS_CHECK_CUST031 error, you can take the following steps:
  
  
  Check Existing Assignments:
  
  Verify if the external number you are trying to assign is already in use by another vendor or business partner. You can