Hi,

Where can I find information about how to insert parent-child records via REST-API. Inserting single records is fine. 
Example: Parent Table A (Invoice), Child Table B (InvoicePosition)

I want insert a child-record in B and pass the ID of A. 
Is this a REST-API topic or a mix of Ninox Schema configuration and REST-API?

The REST-API Doku does not mention such a use case.

Furthermore: Is it possible to work with external IDs? 
In the use case above I want to work only with InvoiceIDExternal and not with Ninox-Internal Database Ids. But I want to avoid extra HTTP-Requests to lookup that internal Ninox ID. 

Thanks
Christoph