You need to pass your DLT approved 3-6 letter sender id in this field.

Pass your full DLT-approved SMS by replacing {#var#} with the real values. Missing any character that is not approved in DLT will result in the failure of the SMS. For example, if your DLT-approved SMS is: "Your OTP is {#var#} for {#var#}", you should pass the following SMS in this field: "Your OTP is 5566 for Login."

Pass correct DLT Content Template ID like "1110000001111". It’s optional if template is added in DLT_MANAGER; otherwise, it’s mandatory.

Pass correct DLT Principal Entity ID. It’s optional if template is added in DLT_MANAGER; otherwise, it’s mandatory.

For DLT SMS (Manual) always use "dlt_manual"

You can send multiple mobile numbers seperated by comma like: "8888888888,9999999999,6666666666"

This field is optional, it will use "null" as default value or you can set to a future date and time in format DD-MM-YYYY-HH-MM or 1764560132

Pass 1 to include SMS details in the response, such as character_count, per_sms_rate, amount_debited etc.

User Defined Field 1 – Optional custom value passed via API and returned in the webhook for your internal reference or tracking.

User Defined Field 2 – Optional custom value passed via API and returned in the webhook for your internal reference or tracking.

User Defined Field 3 – Optional custom value passed via API and returned in the webhook for your internal reference or tracking.

Provide "YOUR_API_KEY".