Singapore — GST InvoiceNow (C5)Request GST InvoiceNow activation on the SMP (Corppass authorisation follows)Request GST InvoiceNow activation on the SMP (Corppass authorisation follows) POST /api/v1/jurisdictions/sg/c5/whitelist/:participant/activate Request GST InvoiceNow activation on the SMP (Corppass authorisation follows) Request Responses200422Successful ResponseValidation Error