Disabling a Form field on subsequent visits

[Anonymous]

Hello, Is it possible to disable a form field so that it is no longer an option once a person chooses one time? 
We are running some product upgrade programs using marketo to email and set activities for our field service team based on their response to either of two choices on the form. In some instances, people have chosen both which is triggering two tasks/activites for our field service team.

[Josh_Hill13]

Yes. You have two options, maybe three:

1. Use Show Custom HTML in Settings. Then you can welcome the person back with a token and their choice.
2. Use a Choice on the Field Visibility that disables the field if it is filled out already. Not totally sure this works though.
3. Use custom jquery to disable the form or field.

You could also disable the second task with a Choice flow step that says if EITHER is already filled out, then don't put on task. This might require a separate campaign to run that properly in the smart list.