It means that you need to use a valid U.S. domestic phone number.
Please see the attached link for more instructions on how to correct the issue and proceed to file your return.
Invalid SMS number error
Try deleting the entire value in that box and then re-entering it using a valid U.S.domestic phone number.
If you are still having issues, you can contact us for assistance using the link below.
How do I contact TurboTax for help
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