I would like to override the default routing method for Purchase Order (PO) from specific customers.

1. Login to Ariba Network Supplier account.
2. Click on the [User Initials] on the top right corner > Settings > Customer Relationships.
3. Click Actions > Override Routing to the right of the customer's name.
4. Click Customize routing preferences, then click OK.
5. Customize the settings for order routing and click Next.

Choose whether to expose routing details to your customer.

1. Click Next.
2. Review the details and click Submit.

This functionality is available only for enterprise accounts.

See Overriding Order Routing for a Customer in the SAP Business Network for Trading Partners > Configuring Document Routing > Electronic Order Routing to learn further information about this functionality.

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