Purchase Order (PO) fails with the error message:

PO-11: Cannot deliver order. Terminal error code for PO status: FE-28

After this error, there may be another error message like the ones listed below:

Unrecognized email response received from the supplier.
550 5.1.1 email@ariba,com: Recipient address rejected: User unknown in local recipient table
550 5.4.1 Recipient address rejected: Access denied
554 rejecting banned content
552 size limit exceeded
550 Too many invalid recipients
550 5.7.0 Local Policy Violation
5.2.2 STOREDRV.Deliver.Exception:QuotaExceededException

The email configured under the Electronic Order Routing settings is rejecting the email from Ariba. This could be due to the email server/firewall settings, an inactive email, or an automatic reply.

Please note: If POs are failed only from one buyer, check any Override Routing settings.

You can change the email settings on your account:

1. Login to your account at https://supplier.ariba.com.
2. In the upper-right corner of the application, click [user initials] > Company Settings > Electronic Order Routing.
3. Edit the email address(s) on this page.
   You can add up to 5 addresses for any notification. Separate emails with a comma and no space.
4. Click Save.

You can also look into your email server to see if the email address(s) is/are active, if any automatic reply is set up, or if any firewall settings are blocking the email.

Once the issue has been addressed with the email settings, you can resend failed POs.

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