Purchase orders (POs) are failing to reach the supplier's email address, but can be seen in their Workbench online.

The PO status is Failed in the SAP Business Network. The supplier has their Routing Method set to Email in Settings > Electronic Order Routing.

Different error messages can be shown in this scenario:

• PO-11: Cannot deliver order. Terminal error code for PO status: FE-28: Cannot deliver email: Unknown Recipient
• PO-11: Cannot deliver order. Terminal error code for PO status: FE-30: Cannot deliver email: undeliverable
• PO-11: Cannot deliver order. Terminal error code for PO status: The state of document XXXXXXXXXXXXXXXXXXXXXXXXXX was changed to Failed after unsuccessful attempts to resend it.

If the supplier is expecting to receive their purchase orders via email, their Electronic Routing Method needs to be set to Email, a valid email needs to be configured, and the email server needs to allow emails from the domain @ariba.com.

See the articles below for specific guidance in each of the errors referred above:

• Error: "PO-11: Cannot deliver order. Terminal error code for PO status: FE-28" purchase order failure
• PO failed with error: "FE-30: Cannot deliver email: undeliverable"
• Error: "PO-11: Cannot deliver order. (...) Failed after unsuccessful attempts to resend it." when sending email PO to supplier

The purchase order couldn't be delivered in the supplier configured email.

If the supplier has their Routing Method set to cXML, EDI or CIG, different solutions will apply.

SAP Business Network for Procurement & Supply Chain > Transaction Documents > Transaction (Purchase Orders, Ship Notices & Goods Receipts)