# RelayBook Release 2026.3 > [!quote] Triggers, limits, and polish. > > This release adds **campaign triggers** for automated enrollment, a **free tier sending limit**, and a batch of quality-of-life improvements across the app. ## Campaign Triggers Campaigns can now enroll contacts automatically based on data changes - no manual enrollment required. - **Custom field triggers** - When a contact's custom field changes to a specific value, automatically enroll them in a campaign - **Label triggers** - When a label is added to (or removed from) a contact, trigger campaign enrollment - **Works everywhere** - Triggers fire from the UI, bulk actions, and the public API - making them ideal for external integrations - **Duplicate prevention** - Each contact is enrolled once per trigger, even if the condition is met multiple times - **Enable/disable** - Toggle individual triggers without deleting them > [!tip] External Automation > Combine triggers with the public API to let external systems (like your CRM) drive campaign enrollment. Update a contact's field via API, and RelayBook starts the right campaign automatically. See [[Campaigns Overview#Campaign Triggers|Campaign Triggers]] for setup details. --- ## Free Tier Email Limit Books using RelayBook's shared email service are now limited to **100 campaign emails per month**. Connect your own SendGrid account for unlimited sends. - **Usage tracking** - See your current send count in Email Settings - **Warning at 80%** - Get a heads-up before you hit the limit - **Campaign auto-pause** - When the limit is reached, active campaigns pause automatically and resume next month - **BYOK unlimited** - Books with their own SendGrid API key have no limit See [[Email Settings#Free Tier Sending Limit|Email Settings]] for details. --- ## Bulk Action Improvements - **Remove label** - Remove a specific label from all selected contacts - **Clear custom field** - Clear a custom field value across all selected contacts - Both actions available in the floating bulk action bar and via the public API --- ## Additional Improvements - **Book colors** - Selected book colors now display on sidebar icons for all books, not just the active one - **Team book stability** - Renaming or recoloring a team book no longer causes it to jump out of the Team section - **Cleaner focus states** - Removed visible focus outlines on mouse clicks while preserving keyboard accessibility --- _Smarter automation, better limits, and a more polished experience._ Questions or feedback? Reach out at [email protected].