Select accepted document type for peppol with create or update client

Hello,

when I add a contact via the web interface and select invoice transfer via peppol, I can chose from a list of accepted document types for this contact.

How can I get the list of accepted document types via the api when I create a new client (or update an existing client)? If it's only possible via update, we can implement a two step approach.

Or is there an alternative, that automatically selects one of the accepted document types automatically when we create an account with transport type = peppol (or update an existing account and switch from email transport to peppol transport?

Thanks!

Thomas