How to auto-populate ServiceNow form fields using URL query parameters

[RushikeshB24337]

Hi Team,

I have a requirement where an external system redirects users to ServiceNow for ticket creation.

Requirement:

• User clicks a link from an external system
• ServiceNow form opens
• Some fields should be automatically populated based on URL query parameters

Example:

https://example.com?FIELD1=value1&FIELD2=value2&FIELD3=value3&FIELD3=value4

Details:

• Query parameters contain multiple field values
• Some parameters are repeated (same key with multiple values)
• These values need to be mapped to ServiceNow form fields such as:
  • Text fields
  • Dropdown fields
  • Multi-value fields (checkbox/list collector)

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Questions:

1. What is the best approach for this use case:

   • Record Producer
   • Catalog Item
   • or any other method?

2. How can we capture URL query parameters in ServiceNow and populate fields on form load?

3. How to handle multiple values for the same parameter (e.g., FIELD=value1 & FIELD=value2)?

4. What is the recommended implementation approach:

   • Client Script (onLoad)
   • UI Script
   • or any out-of-box feature?

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Expected Outcome:

When user opens the ServiceNow form via URL, fields should be pre-populated automatically so the user can review and submit the form.

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Any guidance or best practices would be really helpful.

Thanks in advance!