iPhone doesn’t share messages with iPad or computer

Hello!

Check out the links below for some detailed information to ensure that everything is set up properly. Specifically check the first link with detail. If you have issues please let me know at which step you run into problems.

Keep all your messages in iCloud: https://support.apple.com/en-us/HT208532

How to forward text messages on your iPhone: https://support.apple.com/en-us/HT208386

Use Messages with your Mac: https://support.apple.com/en-us/HT202549

Let me know if this helps!

Ok, well if you get back to your computer and you are still having issue even after checking text message forwarding I would contact Apple directly for more assistance.