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Question

How to default at +1 for US phone number for a 30 minute event

  • February 2, 2026
  • 20 replies
  • 148 views

Hi, I’m running into an issue with my calendly event, when a prospect starts entering a phone number as the location of the 30 minute event, they see a US flag but as soon as they start typing in the phone number (without the +1), the US flag goes away and prospect gets error on phone number stating missing country code.  Has anyone run into this before and if so, were you able to solve it and how? 

Let me know.  Thanks!

20 replies

David
Community Manager
  • Community Manager
  • February 3, 2026

Hi ​@Ed13213 - Thanks for reaching out!

This is something our team is aware of and working on! As soon as I hear any update I’ll let you know!
 


  • Community Member
  • February 3, 2026

Will everyone be notified when it’s fixed? I’m having the same issue!


  • New Community Member
  • February 3, 2026

@Joe44 -

As a workaround until this is fixed you can prefill the “+1” in the link to ensure that it automatically shows the country code number in phone input. For example, using the link - https://calendly.com/d/cxpp-pt5-m4k?a3=+1 - will automatically show the “+1”.

You can add ?a3=+1 to your calendly url (make sure to change a3 to a1,a2, etc depending on which question number corresponds to the phone input).


  • Community Member
  • February 3, 2026

First, I’m not a programmer person. Second, then what happens when it gets fixed?

 


  • New Community Member
  • February 3, 2026

> First, I’m not a programmer person. 

If you are able to share your Calendly link I can update the link to include the “+1”. The instructions below explain how it works.

https://help.calendly.com/hc/en-us/articles/226766767-How-to-pre-fill-invitee-information-in-your-Calendly-link#h_01JS29PDYPP74DK53N9ZBSXCDK

> Second, then what happens when it gets fixed?

It continues to work the same - when the bug is fixed it’ll work exactly same whether the prefill is there or not.


  • New Community Member
  • February 4, 2026


If you are able to share your Calendly link I can update the link to include the “+1”. The instructions below explain how it works.

This is a problem that appears to be over one year old! Does this mean that it has to be added manually to the link for each meeting? Or can this be embedded in the Calendly code, so that when new folks sign up they don't have this problem with the country code? If so, could you explain in a little more detail how to do that? I did read the support page that you referenced. BTW, since this issue appears to be over a year old, this would make an excellent tutorial video for your YouTube channel. Thank you very very much!!


  • New Community Member
  • February 5, 2026

@Joe44 -

As a workaround until this is fixed you can prefill the “+1” in the link to ensure that it automatically shows the country code number in phone input. For example, using the link - https://calendly.com/d/cxpp-pt5-m4k?a3=+1 - will automatically show the “+1”.

You can add ?a3=+1 to your calendly url (make sure to change a3 to a1,a2, etc depending on which question number corresponds to the phone input).

Thank you! I am confused though, BC, I put the calendly info into Wordpress (we are a small company that uses calendly for our events—numerous ones daily—and I use the code “add to website” instead of copy link). How do I do this above step then? If I want to add it to the INLINE EMBED option? AND do I have to do this for every event? This seems INSANE! Is it smarter to set up a custom question for phone number and thrn off the calendly question? And again is that to be done for every event? We have multiple events daily! 


  • Author
  • Community Member
  • February 5, 2026

> First, I’m not a programmer person. 

If you are able to share your Calendly link I can update the link to include the “+1”. The instructions below explain how it works.

https://help.calendly.com/hc/en-us/articles/226766767-How-to-pre-fill-invitee-information-in-your-Calendly-link#h_01JS29PDYPP74DK53N9ZBSXCDK

> Second, then what happens when it gets fixed?

It continues to work the same - when the bug is fixed it’ll work exactly same whether the prefill is there or not.

Thank you everyone for your input. Based on the knowledge provided, I’m now able to get the 1 defaulted into the phone number (Thank you!), however, the + before the 1 does not default even though I included it on my link.  "https://calendly.com/my-calendar/?location=+1" 


  • New Community Member
  • February 5, 2026

@Ed13213 - great callout! The location input works differently for some reason, so the “+” will not appear like in the custom questions.
 

@Sonia83470 - I’ve highlighted the code you need to change for the inline widget below; when you copy your code you’ll just need to add the “a3=+1” (or whichever answer corresponds to the input)

<!-- Calendly inline widget begin -->
<div class="calendly-inline-widget" data-url="https://calendly.com/acmesales?a3=+1" style="min-width:320px;height:700px;"></div>
<script type="text/javascript" src="https://assets.calendly.com/assets/external/widget.js" async></script>
<!-- Calendly inline widget end →

Do you have multiple embeds on your site? If so, there might be a way to programmatically add the “+1” to avoid needing to manually update everything. Feel free to email me directly if you’d prefer not to share your site publicly.


  • New Community Member
  • February 5, 2026

@Ed13213 - great callout! The location input works differently for some reason, so the “+” will not appear like in the custom questions.
 

@Sonia83470 - I’ve highlighted the code you need to change for the inline widget below; when you copy your code you’ll just need to add the “a3=+1” (or whichever answer corresponds to the input)

<!-- Calendly inline widget begin -->
<div class="calendly-inline-widget" data-url="https://calendly.com/acmesales?a3=+1" style="min-width:320px;height:700px;"></div>
<script type="text/javascript" src="https://assets.calendly.com/assets/external/widget.js" async></script>
<!-- Calendly inline widget end →

Do you have multiple embeds on your site? If so, there might be a way to programmatically add the “+1” to avoid needing to manually update everything. Feel free to email me directly if you’d prefer not to share your site publicly.

Omg can you please help me do this universally so it’s not needed for every single event? 


  • New Community Member
  • February 5, 2026

@Sonia83470 - this depends on how customers are currently using your links to schedule. Are they primarily embedded on your site or do you send the links directly to customers? If it’s mainly on your site then this can probably be achieved programmatically.


  • New Community Member
  • February 5, 2026

@Ed13213 - great callout! The location input works differently for some reason, so the “+” will not appear like in the custom questions.
 

@Sonia83470 - I’ve highlighted the code you need to change for the inline widget below; when you copy your code you’ll just need to add the “a3=+1” (or whichever answer corresponds to the input)

<!-- Calendly inline widget begin -->
<div class="calendly-inline-widget" data-url="https://calendly.com/acmesales?a3=+1" style="min-width:320px;height:700px;"></div>
<script type="text/javascript" src="https://assets.calendly.com/assets/external/widget.js" async></script>
<!-- Calendly inline widget end →

Do you have multiple embeds on your site? If so, there might be a way to programmatically add the “+1” to avoid needing to manually update everything. Feel free to email me directly if you’d prefer not to share your site publicly.

Omg can you please help me do this universally so it’s not needed for every single event? 

How do I email you directly? Also when I added the +1 to the link it did work but when I did it to the inline embed it did -1. So then I took the plus out and did =1 and it still has a -1


  • New Community Member
  • February 5, 2026

You can use the email address in my signature - support @ calforce.pro


  • Author
  • Community Member
  • February 5, 2026

You can use the email address in my signature - [removed by moderator]

Youtube link provided:

This page isn't available. Sorry about that.

Try searching for something else.


  • Author
  • Community Member
  • February 5, 2026

You can use the email address in my signature - [removed by moderator]

Youtube link provided:

This page isn't available. Sorry about that.

Try searching for something else.

I got the YouTube video to work, Thanks!


  • Author
  • Community Member
  • February 7, 2026

The videos do not show me how I can use a custom field for phone number.  Can you help me with this so that I’m able to default a +1 for US number and not keep getting an error for this field?  


  • New Community Member
  • February 7, 2026

@Ed13213 - in the “Invitee Form” section of your event type settings you can add a question called “Phone Number” that has an answer type of “One Line”. This answer type will bypass the phone number validation so the invitee doesn’t need to enter the “+1”.


 

 


  • Author
  • Community Member
  • February 10, 2026

Thank you ​@Calforce50652, I appreciate your help.  I went with your recommendation of using a custom question for my phone number and instructing users to provide a +1 as a prefix for US phone numbers.  Hopefully, Calendly provides a long term fix to address international phone numbers.  Thank you!


David
Community Manager
  • Community Manager
  • February 11, 2026

Hi all! We’re looking at pushing out a fix today, so keep an eye out and let me know if you see any changes!
 

 


  • New Community Member
  • February 12, 2026

@David thank you! I came here looking for the same thing and am happy to see a fix is coming.  We will be on the lookout too.