We’d like to request Alphanumeric Sender ID support for SMS in the UK to improve brand recognition and reduce unnecessary unsubscribes.

Currently, GHL does not support masking SMS numbers with a recognizable Sender ID, meaning UK recipients see an unfamiliar number instead of the business name. This is causing higher unsubscribe rates, as customers don’t immediately recognize who the message is from.

For example, one of our clients sends non-promotional follow-up texts one day after a vehicle service—simple confirmations and reminders. Despite these being valuable service-based messages, we've received warnings about higher SMS unsubscribe rates. From our perspective, the lack of a recognizable Sender ID is a major factor in this.

We previously understood that UK Alphanumeric Sender IDs aren’t supported in GHL, but we need confirmation on whether this feature is planned or if there’s a viable workaround. If no solution is on the roadmap, we may need to explore alternative SMS providers for the UK market.