# SMS Gateway

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* **SMS Gateway:** The admin requires to select the SMS Gateway to send SMS.
* **Msg91 Sender ID – Msg91 Authentication Key:** Admin requires to add the Sender ID and the Authentication Key of SMS gateway.
* **API URL:** Admin have to add the API URL which they will get from the vendor of the SMS gateway used.
* **Route:** Select Route as Promotional or Transactional.
* **OTP String Type:** Select the OTP string type, either Numeric or Alphanumeric.
* **OTP String length:** Admin can add the number they want to set for the length of the OTP string.
* **Send Message API:** Select SMS API as DLT Template or Campaign Template.
* **DLT Dev Mode:** If you select DLT Template in the above field, you will get this field. Set Yes for developer mode.

<figure><img src="https://807210804-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F8wMgNeFnYjVGQmgdxMv4%2Fuploads%2FoeFdSZOD96URS1WOW0dg%2Fimage.png?alt=media&#x26;token=f50a32f5-ffad-42b4-8da3-11a8cf294834" alt=""><figcaption></figcaption></figure>

* **Send Testing Message:** To test the message admin will require to enable that right from here.
* **Testing Mobile Number:** Add your testing mobile number in this field.
* **Testing Message:** Add your desired testing message in this field.