There is no BP in claims system for BP &1 in catalog system (claim itm&2)

What causes this issue?

Business partner &V1& was determined in the catalog system. However, in
the Claims Management system, there is no business partner with claim
item &V2& that can be assigned to this business partner &V1&.

How to fix this error?

Ensure that a business partner in the Claims Management system is
assigned to the business partner determined in the catalog system.
Perform one of the following activities:
Assign a business partner that already exists in the Claims Management
system to business partner &V1&.
Create a new business partner in the Claims Management system for
business partner &V1&.
On the <ZK>SAP Easy Access</> screen, choose <ZK>Insurance -> Claims
Management -> Master Data -> Business Partner in Claim -> Maintain
Business Partner</> and perform the corresponding steps.

Error message extract from SAP system. Copyright SAP SE.