
KyuhyunS.41204 (Customer) asked a question.
I am in the process of "Sign Users In > Add multi factor authentication" as suggested in Okta developer portal.
When I try to enroll SMS factor in Postman app, this error message keeps happening.
"errorSummary": "Only numbers located in US and Canada are allowed. Contact your administrator if this is a problem.",
Could you please tell me how I can fix this? I was told to enroll SMS factor so that I can do SMS testing with my phone.

Hello @KyuhyunS.41204 (Customer)
Please check the following thread with related information:
https://support.okta.com/help/s/question/0D51Y00009pbucb/sms-authentication?language=en_US
Regards,
Natalia
Okta Inc.