For inventory control I need:
1. when invoice is saved, the parts in invoice will will automatically subtract from the product table.
2. when invoice is saved, the ordering grid can't be touched.. so it can't be alter.
3. when the quantity column has '-' quantity then it automatically added to the product table.
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so my question is..
I would like to know how to make a code so that when invoice is 'saved' it goes off seeking a data on
gridlineitems and does it's job as shown above.
Can anybody give me a hint?
Thank you very much.