Change in Costing Method from 99 (Zero Costs) to 01 or 02 Weighted Average

Hello,

Currently 99 (Zero Costs) in use for all products. Now requirement is to change costing method from 99 to 01 or 02 for all existing products.

Two Questions:

1. Is 01 - Last In cost suitable for Sales / Inventory, if Yes, what all changes required in configurations?

2. 02 - Weighted Average costing method, can we use P4105Z1 | R4105Z1I to change existing costing method? Change existing lots with zero quantities with new costs?

Thanks.