topic Formatting Mobile Phone numbers on lead capture forms for SMS marketing in Lead Capture Tools

Formatting Mobile Phone numbers on lead capture forms for SMS marketing

MWilliams74 — Wed, 10 Jul 2024 18:08:32 GMT

I'm trying to add SMS text messaging so have created a form to collect mobile numbers. However when the form is filled out, my contacts are not automatically subscribed to receive SMS texting because the numbers aren't formatted correctly.

Here is the page with the form I’ve created:

<script charset="utf-8" type="text/javascript" src="js.hsforms.net/forms/embed/v2.js"></script>
<script>
hbspt.forms.create({
region: "na1",
portalId: "7178822",
formId: "af013726-a625-48dc-b2d6-1021101647e5"
});
</script>

The form is bringing numbers into the contact, but it won’t allow them to receive text messages Because of number formatting. I've reached out to tech support and they recommended I post here as I'll need to set up a workflow using a custom coded action to format the mobile phone number correctly.

Any ideas? Anyway I can update the format of all my existing mobile phone numbers associated with contacts already?

Ugh.

Re: Formatting Mobile Phone numbers on lead capture forms for SMS marketing

PamCotton — Thu, 11 Jul 2024 20:14:39 GMT

Hey @MWilliams74, thank you for posting in our Community!

To format mobile phone numbers for SMS marketing in HubSpot, you'll need to use a custom-coded action in a workflow. Create a workflow that captures form submissions with the phone number field, then add a custom-coded action to format the numbers in E.164 format. Map the output field to the correct contact property, test the workflow with sample contacts, and then activate it. For existing contacts, set up a similar workflow to reformat their numbers. This should solve the issue and enable SMS texting.

I hope this helps.

Pam

Re: Formatting Mobile Phone numbers on lead capture forms for SMS marketing

GrowthOperation — Fri, 08 Aug 2025 19:48:35 GMT

Hi @MWilliams74 - I just came upon this post from a year ago. Not sure if you are still struggling with this, but there is now a native solution availble within the workflows tool (ongoing automation) - or one-time updates you can make within the SMS settings to a given list.

I just ran a test contact through and it worked great.

Loom walkthrough if helpful.