> For the complete documentation index, see [llms.txt](https://docs.magecomp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.magecomp.com/magento-2-cash-on-delivery-suite/sms-gateway.md).

# SMS Gateway

<figure><img src="/files/nvGzyILhmmgTJ7FEKc3r" alt=""><figcaption></figcaption></figure>

* **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="/files/avebR7HDbOUxsx2SOoYI" 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.