A customizable group messaging space within the GroupMe app, designed for seamless communication among friends, classmates, teams, or communities.
Hello Kaiden, thanks for posting this in the community.
GroupMe may mark your number as invalid if it is not a mobile number that can receive SMS, or if it is a VoIP or landline type, since these are not supported. It can also happen when the same number is linked to several Microsoft accounts, which may cause verification limits. You can try removing your number from any unused Microsoft accounts by signing in to https://account.microsoft.com and updating your phone details, then try again. It also helps to check with your mobile carrier to make sure SMS short codes are allowed and to avoid using a VPN during registration, as this can affect the validation process.
Kind regards,
John Oli