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On this page
WARNING: 14101
Warning - 14101
"To" Attribute is Invalid
On this page
WARNING: 14101
Warning - 14101
"To" Attribute is Invalid
Invalid "To" attribute
Positive Feedback
Negative Feedback
WARNING: 14101
warning-14101 page anchor
Positive Feedback
Negative Feedback
WARNING
Warning - 14101
warning---14101 page anchor
Positive Feedback
Negative Feedback
"To" Attribute is Invalid
to-attribute-is-invalid page anchor
Positive Feedback
Negative Feedback
The To attribute does not appear to be a phone number that you can SMS
Possible Causes
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Invalid formatted number
SMSing an un-validated number while using a Trial Account
Possible Solutions
possible-solutions page anchor
Check the number and make sure it is a valid 10 digit domestic phone number
Confirm you have validated this number, if you are still using a Trial account, or upgrade your account
Contact Twilio
customer support
to inquire further.