Planning period was exceeded

What causes this issue?

The planning period was defined from &V1& to &V2& in Customizing for
capacity leveling. You tried to take the requirements from line &V4&,
which lies outside the planning period (&V3&) and to dispatch it.

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?

You should only dispatch requirements that lie within the planning
period or
change the planning period in the time profile in Customizing for
capacity leveling.

Error message extract from SAP system. Copyright SAP SE.