SMS issues with collecting country code

Question

Hi all,I have a survey that is accessed via QR code in our physical locations. We collect their name and phone number. In the workflow, they will receive a text 4 hours later that contains a link for a post-visit survey. It is possible that we will receive phone numbers from the USA, as well as international numbers, so I cannot use the regular phone number validation. The issue I am having is custom validation. I don’t want to require the respondents to enter the plus sign like: +1 (USA) or +44 (UK) for example when entering their cell phone number, because its not natural for someone to do. However, in order to receive an SMS, the 1 or 44, etc. is required or the SMS workflow trigger fails. I had used AI (ChatGPT, Gemini, and Qualtrics AI support) to create and test custom validation using “Matches regex” and it WORKED a month ago.. but now I see that it has stopped working. I’ve gone back in and tried various coding for matches-regex.. and nothing seems to do be doing the trick. People are still able to submit a phone number without a country code, which is a problem for me. As a quick solution, I’ve set up “Mobile phone number contains: +” so that I don’t have any other SMS triggers fail.. if they forget the + sign, they get this error “Invalid phone number: Please make sure you included your country code (+1 for USA, +44 for UK, etc.) and that you do not have any spaces, dashes, or parentheses.”BUT I am hoping someone can help me create a proper “matches regex” string, or a custom code to allow the following formats (if they don’t match the following formats, I have the error message firing): USA MOBILE NUMBER EXAMPLES:12345678909 (passes regex validation)+12345678909 (passes regex validation)2345678909 (fails regex validation) Please help - it would be greatly appreciated!! :) I’ve talked to multiple support specialists and have not been able to find a solution, so they sent me to the community page!

Lpena · Answer

Hello,hcopeTo create a custom regex pattern that enforces the country code 1 for U.S. phone numbers and accepts an optional leading plus sign (+), use the following expression:Code snippetWhat This Pattern Matches:Valid Inputs: 12345678909 and +12345678909 (It allows the optional plus sign and requires the leading '1').Invalid Input: 2345678909 (It is rejected because it does not start with the required country code '1').Breakdown of the Pattern:^ : Asserts the start of the input.\+? : Optionally matches the literal plus sign (+).1 : Requires the country code 1.\d{10} : Matches exactly 10 digits (the subscriber number).$ : Asserts the end of the input.Important Note for International Numbers:This pattern is specific to the U.S. country code 1. To validate international numbers (e.g., UK's +44), you would need a more complex regex that accounts for multiple country code formats.

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