"...to Salesforce" is kind of off-topic.
If you're synced to SFDC you just need the value in Marketo.
To do this, set your hidden field to Autofill from a query parameter. This is easy to find in Form Editor.
Thank you for your help.
Sorry, I don't think I'm articulating my question properly.
We'd like to pass the values for the hidden fields on the Marketo form FROM a query string in the Marketo URL so that if there's a hidden field for FIRST_NAME, the field will be populated from the value of the FIRST_NAME that's in the query string of the Marketo URL.
We are synced to Salesforce.
We're trying to reduce our workload but creating multiple forms to pass unique hidden values but passing the hidden values in a query string instead.
Do you know if that's possible?
If so, how?
Thank you Sanford!
When you set a hidden field to Autofill from query parameter, it... fills the field value from a query parameter, I don't know another way to say it.
If the URL contains
and the hidden field
is set to Autofill from the query parameter
then when someone visits the page with the above query string, the lead's FirstName is set to "Emily."
Thank you for your help!