I have embeded a subscription center form on an external site however when I include this link in Real Time Marketing journeys the form is not pre-filling, displaying:
We’re unable to verify your contact information. Make sure cookies are not blocked or use the unsubscribe link in your email.
It eventually does pre-fill if I click show form anyway and submit a response and then revisit the link - I assume it is not picking up the contactid in the first email instance?
Is it possible to use this function in Real Time Marketing or have I missed a step? I would like to avoid the Preference page function recommended for Real Time Marketing as this is very limited at present.
