How to validate Mobile Number with Country code followed by 10 digits

Question

I am new to salesforce . I have MobilePhone field in Contact. I need to validate the MobilePhone Field such that it must include (+1, +91, +355) followed by 10 digits mobile number.

NOT(REGEX(MobilePhone, "\D*?(\d\D*?){10}")) - This Regex works for 10 digits. How can I write this regex with country code using validation Rule. Ex: +19878767657 , +919878787678

Answer 1

Use [+][0-9]{1,3}[0-9]{10}

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[+] to check '+' at start

[1-9]{1,3} to check up to 3 digits for Country code

[0-9]{10} to check 10 digits for Phone Number

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