We are currently allowing AWS SNS to control our Opt-out text replies to opt out of future text messages when sending SMS messages to our customers. By default, I believe, Amazon SNS has built in functionality to support the Opt-out STOP message for text responses wishing to opt-out of future SMS notifications.
However, it appears as if the START response our customers are sending to Opt back in to SMS messages is not being handled by SNS and removing the phone numbers from the opt-out list.
Has anyone leveraged this functionality and, if so, could you provide me with steps to configure this? I have tried to follow the following (AWS Pinpoint/SNS: Two-way SMS unsubscribe/resubscribe implementation) but it doesnt exactly fit our need, as we are not sending an opt-in message upon initiation of text communication. We are simply using AWS SNS to host the communication for text notifications. We also are not interested in an enrollment form to opt-in text communication.
We just want users to be able to reply "START", have the default keyword response sent to the customer, and then programmatically have their number removed from the opt out list.
