Hi Petra,

Thanks for raising this request. Just to make sure I am understanding correctly, are you looking for support for custom fields within the core Marketing Campaign API?

Specifically referring to this endpoint:
https://developers.hubspot.com/docs/api-reference/marketing-campaigns-public-api-v3/campaign/get-marketing-v3-campaigns-campaignGuid

Thanks,
Vignesh

Hi Vignesh! Yes I believe thats the one. Is the issue that Hubspot doesn't provide access to the custom fields?