How do I set a default sender ID for sending SMS?

On https://unify.smsgateway.center, use the “Set Default Sender ID” form in the “Manage Sender ID” section. From the dropdown, pick one of your listed sender IDs (e.g., SMSGAT) and click “Save Changes.” This ID will auto-appear when sending SMS, simplifying your workflow. It’s great if you use one ID often with our SMS gateway—update it anytime as needed.