iMessage activation error with phone number on my iPhone

"imessage activation error: I can’t activate my phone number on my imesage"

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Troubleshooting iMessage Activation:

A. Try Setting it Up Correctly:

Go Here: Use Messages on your iPhone, iPad, or iPod touch - Apple Support

B. Enable Messages in ScreenTime:

1. Go to: Settings
2. Tap: Screen Time
3. Tap: Allowed Apps
4. Tap: Messages (So it is in "ALLOWED APPS")

C. Go Here: If you can’t Turn On or Sign In to iMessage or FaceTime - Apple Support

No success?....

D. Whom to Contact:

Contact your Carrier, as they are the one who provide you with the service of Messaging.

"iMessage activation error with phone number on my iPhone: I can’t activate my phone number on my imesage"

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Setting Up iMessage Issues:

A. Remove the Number, First:

If it already exists, remove this number, and then set up messages once more. and be certain iMessage is enabled on your iPhone.

B. Setting Up Messages on a Mac:

Go Here:

• Set Up Messages on Mac - Apple Support
• Set Up iPhone to get SMS Messages on Mac - Apple Support
• Use Messages on your Mac - Apple Support

then...

C. Restart the Mac:

Next, restart the Mac, having just set this up.