The number of periods in the plan line items table is incorrect

What causes this issue?

In summary table &V3& the number of periods is defined as &V1&. The
number of periods in line item table &V2& differs from this.

System Response

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

How to fix this error?

Define the plan line item table with exactly the same number of periods
as the summary table.

Error message extract from SAP system. Copyright SAP SE.