SAP Message TU860 - There is not enough historical data to create a pyt plan for contract &1

Diagnosis
You attempted to create a payment plan for contract &V1&.
Payment plan type &V2& from the contract requires billing data for atleast &V3& months to do so. However, there is not sufficient billingdata available.

System Response
The system cannot create a payment plan based on historical billingdata.

Procedure
To create a payment plan based on historical billing data, the minimumnumber of months must be reached.