There are multiple ways to build conditional paths in your form:
1. Redirect to an Airtable field
miniExtensions Form has a feature called "Redirect to Airtable field". It allows you to redirect users to a URL in an Airtable field, which can be customized per user.
By creating a formula in Airtable, you can redirect users to different steps (e.g. to another form or logging them into a portal automatically using the login formula) based on their answers in this form. The field can be a formula that is made up of any logic supported by Airtable formula fields.
You can find the feature in the Submission Actions section:
Turn on Redirect
Set Redirect URL Type to Airtable Field.
Select the correct formula field as the Redirect URL Field.
This setting is only available when Redirect to a new form in 5 seconds and Show read-only version of record after submission are turned off
You can show users their previous submission(s) by redirecting them to a formula that takes the user to a portal and logs them in automatically.
2. Conditional pages in multi-page setup
In multiple pages mode, you can skip an entire page (not just a field) based on certain conditions.