The sender or Sender ID (SID) is commonly used in the SMS industry to refer to the name or identifier that is displayed to the recipient of the SMS.

Is a key element in SMS messaging, and it should be the name of your company or brand.

You can customize the sender of each campaign with alphanumeric characters (letters and numbers), with a maximum of 11 characters.

However, there are countries where the operators replace the alphanumeric sender with a numerical code, due to local regulations, or where the sender must be pre-registered.

For more information, check this article.

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