Message SAP VT636 - Enter calculation type (condition type has calc. type &2, period &3)

Procedure
Please enter a calculation type.
The following is valid for deferred settlement condition types inpurchasing:
Condition records which are not for periodic agreement or the maincondition records which are for periodic agreement have the calculation
type &V2&. Period-specific conditions and agreements for periodicsettlement can have a different calculation type. The recommended valuefor periodic-specific conditions is likewise &V2&. However, you canalso use other calculation types (manual entry).

392066 Maximum values cannot be entered per calculation rule