My query is

tppdm0110m000(maintain item data) for manufacturing and purchase items, is it require to define purchase price or if i set to 0 what is the impact in std.cost.price... how the wieghtage average rate is calculated

Please advice

Weighted average rate or MAUC.

MAUC stands for the Moving Average Unit Cost, and is updated for each receipt.

The calculation method is as follows:

MAUC = (old on hand * old MAUC) + (receipt quantity * receipt price) / (old on
hand + inbound quantity)