How To Fix CVI_FS_CHECK_CUST_EN013 - Numbers assigned; direction "BP -> customer" not activated

SAP Error Message - Details

• Message type: E = Error

• Message class: CVI_FS_CHECK_CUST_EN - CVI_FS_CHECK_CUST_EN

• Message number: 013

• Message text: Numbers assigned; direction "BP -> customer" not activated

What causes this issue?

Before you can update the business partner in the customer, you must
assign at least one customer account group to a business partner group
in the view "Define Number Assignment for Direction BP to Customer"
(V_TBD001).
You must also activate the synchronization direction in the view
"Activate Synchronization Options" (MDSV_CTRL_OPT_A).

System Response

There is at least one entry in the view "Define Number Assignment for
Direction BP to Customer" (V_TBD001). The synchronization direction of
business partner to customer has not been activated. Data cannot be
synchronized.

How to fix this error?

If you want to synchronize data from the business partner to the
customer, you must activate the direction in the Customizing activity
<DS:SIMG.MDSV_CTRL_OPT_A>Activate Synchronization Options</>.
If not, you can remove the entries in the Customizing activity
<DS:SIMG.V_TBD001>Define Number Assignment for Direction BP to Customer
</>.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CVI_FS_CHECK_CUST_EN013 - Numbers assigned; direction "BP -> customer" not activated ?

  The SAP error message CVI_FS_CHECK_CUST_EN013 indicates that there is an issue with the Business Partner (BP) to Customer integration in the SAP system. Specifically, it means that the direction for creating or managing customers from Business Partners (BP -> Customer) is not activated. This is part of the Customer-Vendor Integration (CVI) process in SAP.
  
  Cause:
  
  Integration Not Activated: The integration direction from Business Partner to Customer is not activated in the system settings.
  
  Configuration Issues: There may be configuration issues in the Business Partner settings or in the Customer settings that prevent the integration from functioning correctly.
  Missing Customizing Settings: The necessary customizing settings for the Business Partner and Customer relationship may not be properly set up.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Activate the Integration Direction:
  
  Go to the transaction code SPRO (SAP Project Reference Object).
  Navigate to Cross-Application Components > Master Data Synchronization > Business Partner > Customer Integration > Activate Integration.
  Ensure that