Partner & Does not Exist for Company Code &

What causes this issue?

partner table (table T8JO).

System Response

Processing cannot continue until a partner is entered that is an owner
for the current company.

How to fix this error?

Verify that the partner entered is also an operator on the JV partner
table. The menu path is: JV Accounting -> Master data -> Business
partners -> JV partners.
<DS:TRAN.GJ23>Proceed</>

Error message extract from SAP system. Copyright SAP SE.