S4H public cloud - Custom CDSView External API for create/update operations

[RWeidner]

Hi all,

is it possible to enable create/update operations for custom External APIs?

Documentation does not state anything about it, all docs/demos end with a view in the browser.

When I call the API the response basically says:

<app:collection sap:creatable="false" sap:updatable="false" sap:deletable="false" sap:contentversion="1" href="YY1_RWETest">

I didn't find anything in the creation process where I could change that.How to create/update data of custom business objects via external API?
thanks,
Reinhard