TFN Validation in Contact Form

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Posted on by Sasi Bridzet

Hi All,

Is there a way to validate the TFN number entered by user on a form(e.g - Contact Form). Like proper validation.
I am new to Dynamics 365 Customer insights, Just working on Trail version.

What I tried:
1. Created a solution in power apps .
2. Included the Contact table.
3. Navigated to Contact forms and included TFN as new form field.
4. Save and publish , the new field appeared on my trial version.

Now I wish to add validation check, Like do we add any business rule, or an api or javascript to validate it?

Thank in advance

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Pradeep Rai 5,489 Moderator on at

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You can write JavaScript which will trigger on change of TFN Number field as shown in below script code:

function onChangeTFN(executionContext) { var formContext = executionContext.getFormContext(); var tfnField = formContext.getAttribute("<yourtfnnumberlogicalname>"); if (tfnField) { var tfnValue = tfnField.getValue(); if (!validateTFN(tfnValue)) { formContext.getControl("<yourtfnnumberlogicalname>").setNotification("Invalid TFN number", "Error"); } } } function validateTFN(tfn) { var tfnRegex = /^\d{3} ?\d{3} ?\d{3}$/; tfn = tfn.replace(/\s/g, ''); return tfnRegex.test(tfn); }

You can use below link to know more about adding on change event :

https://carldesouza.com/adding-an-onchange-script-programmatically-in-dynamics-365-power-apps/

Thank You,
Pradeep Rai.

Please mark ,my response as VERIFIED. if it helps you to resolve the query.

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Leah Ju Microsoft Employee on at

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Hi partner，

Maybe you can try to use PCF control if you don't want to use Javascript code.

https://search.pcf.gallery/

There are some existing controls, you can select one as your needs.

I hope you can mark my answer verified if it answer your question! If you have any questions, please feel free to contact me.
Regards,
Leah

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Sohom Rik 59 on at

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You can use JS webresource that will trigger onchange of the field or onsave
For more details refer : https://learn.microsoft.com/en-us/dynamics365/customerengagement/on-premises/developer/web-resources

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