1. From the desktop app, select your profile picture from the top right and then select Settings.
2. Expand Messages from the left sidebar and then select Instant Response.
3. Select Create instant response.
4. From Phone number, choose the desired phone number for the instant response message.
5. From Instant response message, enter the message you’d like to be sent.
6. Optional: Set your instant response time zone and time period settings:
   1. From Time zone, choose the time zone for the response frequency and time period settings.
   2. To send messages during a specific period, enable Send only during this time period and then choose your Start and End date and time.
   Note: If you don’t select a time period, the instant response will be sent all the time.
7. From Response Frequency, choose how often you’d like to send instant response messages for missed calls from the same caller.
8. Optional: Enable Show a notification when an instant response message is sent to receive instant response notifications.
9. Select Save.
10. Enable the toggle for the phone number you set up an instant message for to turn on instant response messages. You can use the toggle to turn the instant response on and off, instead of deleting the instant response.
11. Repeat the steps above for other phone numbers that need instant response enabled.

1. From the mobile app, select your profile picture from the top left.
2. Go to Messages > Instant response.
   Tip: From Instant response you can enable or disable the toggles for the different instant responses you have set up.
3. Select the desired phone number.
4. Enter the message you'd like to be sent and then select Save.
5. Enable instant response for the desired number using the toggle.

After receiving a missed call from a first time caller, your custom message will be sent to their phone number. Subsequent missed calls will not prompt instant response messages.