Production Quantity Change - Error

[kk]

Hello,

I have a sales order, with 100pcs.

I run master plan.

AX create a Production 100pcs, and the production order is link up with
purchase order 100pcs (raw material).

I post purchase invoice 100 pcs. (raw material)

I estimate and start the production order 100pcs.
I "report as finish" the productin order 10 pcs.

Now the customer only want to have 10 pcs.
I change the sales qty to 10 pcs.

Then when I change the quantity in production order, system ask to run
"Re-Estimate". When I run estimate, AX prompt error

"Calculating BOM consumption
Item number: RMxxx
Update purchase
Quantity cannot be reduced because the remaining update quantity changes sign.
Update has been cancelled."

Does anyone know the reason? and how can I solve it?

--
Thanks,

KK

[Decoy]

Are you picking the entire BOM qty on start?

If so, from the Production orders form,
Journals/Picking List,
Picking list > create lines
set Proposal: to Full Reversal
Ok & post lines.

Then change qty & re-estimate.

Finally, Journals/Picking List,
Picking list > create lines
set Proposal: to Remaining Quantity
Ok & post lines.

Hope this helps.

If it doesn't, look at the BOM from the Production order & click the qty
tab: check the Remaining quantity column - you cannot reduce the prod. order
qty by more that what remains to be picked.

--
si wis pacem, para bellum