Within the platform, you can enter individual mobile numbers to be opted out or upload a CSV list of numbers you want to opt-out.
This guide will explore the different ways in which a customer can add their contacts into opt-outs such as:
Opting out of an Individual Mobile Number
Uploading a CSV list of Mobile Numbers to Opt Out
Delete Single Opt-out Entries
Delete Multiple Opt-out Entries
The above scenario is the same for a case where you want to add/upload email IDs into the Opt-Out list.