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How to Call a JavaScript Function on the Form from a PCF Control in Dynamics 365?

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Posted on by Satyam Prakash

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We have a scenario where a PCF control is used on a form, and the same form includes a JavaScript web resource containing a function.

We want to call this JavaScript function from within the PCF control.

Could anyone guide us on achieving this or share any best practices for this integration?

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Tom_Gioielli 3,086 Super User 2026 Season 1 on at

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Can you use the PCF control to hit and update a trigger field on your form, and set the function to run when that field is changed? The field can be hidden on the form and marked as not-searchable, just used as a trigger point for your script?

There are also lots of flavors of PCF controls. If my suggestion doesn't work, some more information on the type of control and what it is doing may help you find a solution. For example, is this control on a subgrid of child records or directly on a field on your form? How is the script normally being triggered?

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Satyam Prakash 1,135 on at

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Thank you for the suggestion!

We did explore the approach of using a trigger field and attaching our script to its onChange event. While this works when the user updates the field through the UI, it unfortunately doesn't trigger the onChange event when the field is updated programmatically via JavaScript. Based on our investigation, this behavior is by design, as programmatic updates setValue do not automatically fire the onChange event.

If there’s a workaround to explicitly trigger the onChange event after a JS update, or if there's a different recommended pattern when using PCF controls for this kind of scenario, we'd appreciate any insights.

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