If the supplying site is using EMT, enter Yes to require a PO acknowledgment to be imported from the SBU before changes are allowed to the PBU’s primary sales order. This field should be Yes at both the PBU and the SBU.

When set to No, PO acknowledgments are not required from lower-level business units. When an EMT PO is created, it is automatically marked as acknowledged so that the originating business unit can modify its primary sales order as required.

Whether the primary sales order—or its individual lines—can be deleted before acknowledgment is not entirely controlled by this field. Instead, when Require Acknowledgment is Yes, the system uses the value of Allow Non-Ack Deletes in Sales Order Control. When that field is Yes, you can delete the primary order or lines regardless of the acknowledgment status.

This field only determines whether an initial PO acknowledgment is required after the original PO message has been imported. PO change acknowledgments are always sent when your EMT process is using EDI messages.