Intercompany AP invoices can be paid using standard payment functionality?

Summary:

For paying Intercompany AP invoices , do we need to define Intercompany supplier as specific supplier type? We presently left supplier type as blank and defined customer supplier relations in respective books and we were able to pay intercompany ap invoice using standard fucntionality. Intercompany supplier is not one of values in Supplier type while defining intercompany supplier. So we left it blank. So i am trying to check if Intercompany AP invoices can be paid using standard payment functionality?

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