Pre-Populating Existing Customer Data

This document is intended to help partners using Partner Page or Embed integrations to pre-fill select fields on the application form.

Partner Page & Embed Pre-Population Overview

Engine by MoneyLion Partner Pages are Engine-hosted white-labelled or co-branded pages that require very little technical integration. Partner Page websites support customizable design and co-branding options to deliver a seamless customer journey.

Engine by MoneyLion Embeds (embeddable widgets) provide access to Engine by MoneyLion's network and the ability to integrate a native, partner hosted integration with very little technical lift.

Regardless of the implementation type (Partner Page vs Embed), we support pre-pop for certain non-PII fields to decrease UX friction and increase app submit rates. Fields can be pre-populated by adding query parameters to the respective URL in the below format*:


For example, to add a zip code to a Partner Page, append the param to the end of the URL path:

To add a zip code to Embed code, append the param to the end of the src string in the <iframe> tag:

    <iframe class=... src='{provided_url}?app.zipcode=10011'></iframe>

*The first query parameter appended at the end of a path should be denoted with a question mark (?); all following params should be denoted with an ampersand (&).

The following is a list of params that can be added to the URL:

Loan Form StepKey (in url param)Notes

Loan Purpose


Requested Loan Amount


No dollar signs, e.g. '6000'

Credit Rating



Spaces should be converted to '%20', e.g. 'New%20York'



Zip Code*


Either 5 digits, or 9 digits separated by hyphen (5+4)

Property Status


Date of Birth


Format: mm/dd/yyyy, e.g. '01/01/1990'

Highest Level of Education


Employment Status


Annual Income


No dollar signs, e.g. '100000'

Pay Frequency


*These fields will be overwritten if the user’s location is detected

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