Documents sent through SAP Integration Suite, Managed Gateway for Spend Management (CIG) and SAP Business Network (SBN) show a status of Completed in the CIG Transaction Tracker, and the same error appears in the SBN portal > document UI > History tab.
However, despite the Completed status, the documents do not reach the buyer’s ERP or Ariba Sourcing system.

The following error appears:

The Supplier: [Supplier ANID] and the Buyer: [Buyer ANID] associated Connection is not configured or saved. Suggested Action : Configure Connection information at Managed Gateway for Spend&Network portal -> Project -> Basic Information -> Connections or Managed Gateway for Spend&Network Portal -> My Configurations -> Connections. For instructions refer to Managed Gateway for Spend&Network Portal -> Resources -> Implementation Guides -> User Guide -> How to configure SAP Business Network connection.For further assistance, please contact Managed Gateway for Spend&Network Support with Error Code : CIG-PLT-00641

• SAP Business Network
• SAP Integration Suite Managed Gateway

The system id passed in the document does not match the system id used in the configured connection. Because of this mismatch SAP Business Network cannot map the document to the correct buyer–supplier connection, resulting in the error.

Verify the System ID in SAP Business Network Configuration

To ensure the correct system ID is configured in SAP Business Network (SBN), follow the appropriate setup guide:

• For multiple ERP systems: Configuring End Points When You Have Multiple ERP Systems
• For a single external ERP system: Configuring End Points When You Have a Single External ERP System

To set up or adjust Custom Routing, follow the steps in Managed Gateway for Spend&Network installation guide - Managing custom routing for document transactions

For additional guidance on verifying your configuration in CIG, refer to: KB0399108 - Error: "The Supplier: [supplier ANID] and the Buyer: [buyer ANID]associated Connection is not configured or saved.."

SAP Business Network for Procurement & Supply Chain > Quote Automation
SAP Business Network for Procurement & Supply Chain > SAP Business Network Integrations
SAP Integration Suite Managed Gateway > Managed Gateway for Business Network