Subcontract PO item withdrawal issue when alternative BOM item used

Question

Hi,
As title mentioned, when we issue alternative material for a subcontract PO in BOM, but it still shows the quantity from primary item.
(For example, we have a product, let's say it as Product-A, it's combined by material-B1 and Material-C1
And the BOM for Product-A for item material-B1 has an alternative item, material-B2
Now the issue is when we issue material-B2 instead B1, but the PO usage/withdrawal listed in B1)
Because we are making a list for China custom for material usage, the issue listed above makes our list not available for custom department.
Please let us know how we could make the withdrawal in PO shows B2.
thanks,
Steven

Answer 1

Dear Steven,
As explained by our forum friend maintain this data.
1.Create 2 different BOM for the same header material with the respective BOM components.
2.Create production version for the header material using T COde MM02--->MRP4 view and click on prod.version,enter the same
as 0001,text as prod version 1,default valid from date will be the current date and the valid to date will be 31.12.9999.
3.Enter the lot size for which this prod version is valid and then in the alternative BOM select the BOM and save the data.
4.Prdo.version can also be maintained through C223.
5.Assign this prod version in the sub-contracting purchase info record in ME11,under prod version under purch org data(not sure
check this alone).
6.Likewise assign the prod version that is linked to the BOM to be picked for each sub-contracting vendor.
Check the results after MRP and revert.
Regards
S Mangalraj