Webhook response mapping : Program member field not found
Hi!
I am trying to register people from Marketo to our webinar platform thanks to webhooks.
I have created a custom Program Member field (Livestorm_unique_access_link)
When I map the webhook response I can see this field listed (screenshot below)
But everytime I test it I got this Unexpected error (field not found).
When I map the response to a custom Lead field it works perfectly.
If the field is not accessible for mapping why is it listed?
I am missing something surely but can't see what.
Thanks for any idea on this one !

