Can we create Sourcing Request(SR) in ARIBA from SAP BTP CF Application Via API or some other way?

Dear Experts,
I wanted to understand from BTP Integration scenario perspective can we create a sourcing request in ARIBA from BTP lets say triggering request from BTP Apps which will be having REST API JSON Payload quotation details ?
I explored couple of options but could not found any relevant API for example -

- SOAP Web API

- REST API from API Business Hub

any leads will be a