How to add a vendor e-mail reply after sendimng a PO to the coresponding PO

How to add a vendor e-mail reply after sendimng a PO to the coresponding PO

Hi there,
i try to find a way to add an e-mail reply to a purchase order. I.e., i mail the PO and my vendor sends me an acknowledge to this order. Actually the answer appear as a request...

Any ideas?

Albae

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