Product: Dynamics 365 For Finance and Operations
A Purchase Order Acknowledgement (855) is an outbound transaction sent back to a Trading Partner to confirm receipt and acceptance of their inbound Purchase Order (850). Within Dynamics 365 For Finance and Operations, the Purchase Order Acknowledgement (855) is generated directly from a confirmed Sales Order through the Electronic Data Interchange (EDI) module.
Before creating a Purchase Order Acknowledgement (855), ensure that the Acknowledgement Type Codes, Acknowledgement Schedule, and Acknowledgement Line Code Schedule have been created and configured on the Order Type Cross Reference for the applicable Trading Partner. Additionally, depending on your EDI Global System Settings, the Sales Order may need to be confirmed before the acknowledgement can be generated.
Creating the Purchase Order Acknowledgement (855)
Step 1 – Navigate to Create Acknowledgement
Navigate: EDI Module → Create/Maintain → Create Acknowledgement
Step 2 – Select Sales Orders
In the Create Acknowledgement window, select one or more Sales Orders you wish to acknowledge. Multiple Sales Orders can be selected at one time.
Select: the desired Sales Orders
Click: Create in the upper-left corner
Step 3 – Review and Adjust Acknowledgement Statuses
Once the acknowledgements begin generating, a status review screen will appear. From this screen, you can review each line and adjust the Acknowledgement Code as needed — for example, changing a status from Accepted to Price Change.
Once all acknowledgement statuses are configured as needed, close the window using the back arrow.
Note: The newly created acknowledgements will appear in the Acknowledgement Maintenance form with a status of "On Hold." They must be completed before they can be transmitted.
Completing the Purchase Order Acknowledgement
Before a Purchase Order Acknowledgement can be transmitted to a Trading Partner, it must first be marked as Complete.
Navigate: EDI Module → Create/Maintain → Acknowledgement Maintenance
Select: the Purchase Order Acknowledgements you wish to complete
Click: Complete Acknowledgement
This step is not required if your Order Type Cross Reference is configured with Create as Complete set to Use, which can be found under: System/Company/Customer Cross Reference → Inbound → Acknowledgement Creation Options → Create as Complete
Transmitting the Purchase Order Acknowledgement
Once the acknowledgement is marked Complete, it is ready to be exported to the Trading Partner.
Navigate: EDI Module → Export → Outbound ACK Mailbox
Select: the document(s) you wish to send.
Click: Export — or select Batch Export to run the export in the background, allowing you to continue working in Dynamics 365 For Finance and Operations while the process completes.
Once exported, the Purchase Order Acknowledgement (855) can be imported into the TrueCommerce Foundry Platform Outbox for review and monitoring.
rev 08/21/26