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It will show you an approximate message length underneath the SMS box. If it is more than one segment, Twilio will count this as additional messages. Please refer to their pricing for more information.
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The SMS character limit is 500 characters (4 segments). Links and inserts, such as first names, create additional characters through the merge fields that are not included in the approximate character count. |
Note that the opt out text, set in your Twilio extension (under Account settings > Extensions > Twilio – use the SMS icon), will be automatically appended.
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