How to process a Recurring PO Voucher Contract

Hi,

We're trying to use recurring PO Voucher Contract feature/capability for the first time.

Business wants to have POs created automatically for any renewal services every year for the range used in the Contract.

I was following this document (Doc ID 1584141.1) for preparing a POC in test environment but the issue I encountered is the Business Unit for which the Contract got created.

We've different business units for Purchasing and Payables.

When the Contract was created, I entered separate Business Unit for AP business unit(Invoice details) and separate PO business unit.

But when I'm trying to run the voucher build process using Contracts in the Run Parameter, it is not showing up the Contract. I checked this record PS_CNTRCT_RLS_HDR and confirm that Contract got created but with Purchasing Business Unit instead of AP business unit.