How to pass the Reference ID to the redirect URL in 123FormBuilder?

Each submission can have a unique Reference ID that can be enabled in the Advanced → Submissions section of your form within the form builder platform.

Reference ID

After submission, you can redirect users to a URL that contains this ID. Paste the URL below in the Thank You page section → Redirect to a web page box and make the indicated adjustments.

Thank you page redirect

a) – Replace this with your custom page.

b) yourrefid – Here you can use any variable you want (ABC, Order Number, anything). The variable can be different from the one you have put in the Reference ID box, in Advanced → Submissions.

c) =requestRefID – Do not make changes to this part of the URL.

Below you have an URL example with our domain.

In your browser, after submitting the PHP form, the Redirect URL will look like this:

Important Note

The Reference ID prefix can contain up to 9 characters.

Important Note

The Reference ID can only be passed like this via a link added in the Thank you page redirect box. It cannot be passed with these steps via Form Rules.


  1. Hi,

    How can we use “=requestRefID.” from URL in thank-you page html/text… I want Ref-ID to be shown in thank-you message. Can we do that?

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  4. I get some problems with your api v2 and this tutorial.

    In fact the requestRefID i get isn’t the real id of the submission, when i look at the data, requestRefID is matching to the dateTimeUnix.

    The problem is :
    How can i have the real id of the submission so that i can use it in a /forms/{form_id}/submissions/{submission_id} request in your apiV2 ?

    1. Hi Claire! Yes, the ReferenceID is a different ID generated automatically by our system.

      Regarding your API question, you need to get all submissions received through a form by making a GET request to /forms/{form_id}/submissions. This will give you all the submission IDs of your entries. The Submission ID is present in the Response Body section ( after “data”:[{“id”:)
      Next, you can see the details of a single submission by making a GET request to /forms/{form_id}/submissions/{submission_id} with the submission ID specified as parameter.

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