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"121611611 Error Invalid Number...

Posted: Sat Sep 23, 2017 4:34 pm
by evelynjgonzalez
...Please re-send using a valid 10 digit mobile number or valid short code."

Above is the error message received when I send large # of group texts. The error message appears for six mobile numbers. I've checked those mobile numbers and they are 10-digit. But because of this error message, the texts aren't sent.