---
article_id: KB0404660
article_type: Support Note
component_ids:
  - SBN-AN-TX-POA
component_descriptions:
  - SAP Business Network for Procurement & Supply Chain > Transaction Documents > Transaction (Purchase Orders, Ship Notices & Goods Receipts)
products:
  - SAP Business Network for Procurement and SAP Business Network for Supply Chain
personas:
  - Admin
  - Buyer
  - Supplier
language: en
created: 2026-08-13
updated: 2026-08-13
source: Knowledge Base
url: https://support.ariba.com/item/view/KB0404660
connect_url: https://support.ariba.com/item/view/KB0404660?min=1
sap_for_me_url: https://me.sap.com/notes/KB0404660
---

# Error: "PO-11: Cannot deliver order. Terminal error code for PO status" when sending Purchase Order (PO) via email

## Symptom

- Purchase Order is failing and not reaching the supplier email. The **History** tab for the Purchase Order shows the error: 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
- The supplier is also able to view the Purchase Order in their **Inbox**, but it is marked as **Failed**. In the Purchase Order **History** tab, the error shows: PO-3: Cannot send order to supplier
- The **Stack trace** column in the Purchase Order **History** tab shows the exception: com.webobjects.foundation.NSValidation$ValidationException: The emailAddress property of ANEmailTracker is not allowed to be null. (...)
- Both buyer and supplier accounts, it is possible to see Transfer to the next integration point has been delayed. Retries: X in the **History** tab of the Purchase Order.

## Cause

The supplier didn't configure an email address in their **Electronic Order Routing** section but have set the **Routing Method** to **Email**. This caused the PO to be marked as **Failed**.

## Resolution

The supplier has 2 options to correct this.

- Enter a valid email address in their **Settings** > **Electronic Order Routing**
- Change the **Routing Method** in their **Settings** > **Electronic Order Routing** to a different method (such as **Online**)

Once corrective action has been taken, the supplier can [resend the PO](https://support.ariba.com/item/view/150942) to themselves.

## See Also

See [Purchase orders are failing to reach the supplier email, but can be seen in the supplier's Inbox](https://support.ariba.com/item/view/192452) for a list of common errors and their resolution.

## Keywords

emailAddress, ANEmailTracker, null, failing, failure