DATEV verbinden

Returns the DATEV OAuth2 authorization URL. The frontend redirects the user to this URL. The connection data (Beraternummer, Mandantennummer, etc.) is stored in cache until the callback processes it. The callback happens on the central callback domain and redirects back to the tenant frontend.

curl -X GET "https://example.com/datev/connect?berater_nummer=string&mandanten_nummer=string&target_system=lug"

{  "url": "string",  "redirect_uri": "string"}