No service provider agreement valid for &1

What causes this issue?

You cannot read parameters for deregulation process &v4& because the
system cannot find a relevant service provider agreement between the
market partner &v2& and the processing service provider &v3& on &v1&.

System Response

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

INCLUDE ISU_VERARB OBJECT DOKU ID TX

How to fix this error?

In Customizing, define a service provider agreement type for process
&v4&. Ensure that the service types for the market partner and the
processing service provider are correct.
Create the missing service provider agreement for service provider &v2&.

Error message extract from SAP system. Copyright SAP SE.