Why did I add a message that can't be sent in in groups?

One of the reasons for the failure of mass texting is that there are obvious forbidden words in the content. Some short messages contain words explicitly prohibited by operators or agents, and this situation is released.

B, content segmentation test.

The second reason of group SMS failure: regional qualifier.

Three reasons for the failure of mass texting: vocabulary prohibited by law.

The fourth reason for the failure of mass texting: special symbol restrictions.

The fifth reason for the failure of mass SMS: the SMS format is wrong.

The reason for the failure of sending short messages in groups: software system error. Sometimes you will encounter a "system error" prompt in the software, which will cause the information to be unable to be sent.

Seven reasons for the failure of sending short messages in groups: insufficient account balance will also lead to the failure of sending short messages.

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