It sounds like you would create a field on the lead object in Marketo to contain the webinar ID, then populate this via hidden fields in your forms.
I think you could tokenize your event programs so that you just enter the webinar ID in the token and have it pass through to your form fields.
Then when someone registers, the webinar ID in the hidden field would become part of the lead record. In your registration flow, you could then call the webhook and pass the merge field as discussed in the doc.
This is my best guess based on what you've posted, but pretty sure that is how it would need to work.
Justin Norris |
Perkuto