Startwords for shared short codes
When starting a new inbound poll, a shared short code is a good choice for high-volume sending and a short implementation timeline (about 3 days).
Shared short codes require a unique Startword (different than Keywords) to begin the poll. These are only required for shared short codes, because Startwords are the trigger that initiates a specific poll. So while the 5- or 6-digit short code itself is shared between multiple polls, the Startword designated to your poll ensures participants get to the correct survey.