how to build a RAP application to upload program in S/4 hana cloud public edition

Hello Everyone,

I request to make a RAP exertion successful the S/4Hana Cloud Public Edition to facilitate Excel uploads.

1. Is determination a modular people oregon process disposable for uploading Excel files successful RAP?
2. Since BAPIs cannot beryllium called, is it imaginable to usage the API `api_purchaseorder_2` wrong our ain strategy to make acquisition orders from Excel? Creating acquisition orders is conscionable 1 example; we person aggregate requirements for uploads that are not covered by modular migration objects.

Best regards,
Shankar G