Message recd. phone number is not available in a user profile

while we are trying to call / WA from mobile, the message received phone number is not available in a user profile. Please do the needful.
The video is attached for your reference.

while we are trying to call / WA from mobile, the message received phone number is not available in a user profile. Please do the needful. The video is attached for your reference.

Hello Sir,

It means mobile number is missing in you user profile. Please login with your user, edit your profile and add the mobile number.

For reference :