Message Prioritization
An optional layer on frequency capping that uses categories and ranked rules to decide which of several competing sends goes out, holding back lower-priority messages and retrying them later.
Entries on this page are generated by AI from vendor sources. How AI is used
Arbitration, frequency & send-time rules
Limits and rules on how often and when messages go out.
| Month | Changes |
|---|---|
| 2026-01 | 5 |
| 2026-02 | 3 |
| 2026-03 | 0 |
| 2026-04 | 3 |
| 2026-05 | 1 |
| 2026-06 | 2 |
| 2026-07 | 1 |
| 2026-08 | 6 |
| 2026-09 | 2 |
| 2026-10 | 2 |
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Platforms with recorded changes
Platforms with at least one feature state classified in this capability (primary or secondary, minor updates included), in the site's fixed order. Select one to filter the timeline. Counts are not shown side by side: they reflect how finely each vendor documents, not how much it offers.
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Matches the Release Matrix evidence: latest state reached in the selected period, entries under review excluded, primary and secondary capabilities included.
No recorded changes match these filters.
Within each period: major updates as cards, then notable ones as rows; newest first in each group. Minor updates below.
October 20262 changes
AI Decisioning exact send-time selection
AI Decisioning lets you choose the exact send time within each three-hour best-time-of-day window, applied per user's time zone to new recommendations.
September 20262 changes
Journey Builder email address deduplication
Journey Builder can deduplicate recipient email addresses within a journey to stop redundant sends.
Quiet hours for campaign sends
Text campaigns can now be delayed or skipped automatically to avoid sending during recipient quiet hours.
August 20266 changes
Workspace quiet hours
Sets a default quiet hours window per channel across the whole workspace, respected by every campaign and Canvas in each recipient's local time zone unless overridden.
Per-user message limits for periodic and triggered campaigns
Caps how many times a user can receive a specific periodic or event-triggered campaign within a defined sliding time window.
Placement-level frequency capping in Decisioning
Decisioning frequency capping can now be scoped to individual placements, with per-placement or placement-specific modes.
Quiet Hours for orchestrated campaigns
Orchestrated campaigns can now define Quiet Hours windows that block sends during set time periods.
Send using waves for orchestrated campaigns
Orchestrated campaigns can now schedule outbound sends in controlled waves over time instead of all at once.
HubSpot 1 minor update Arbitration, frequency & send-time rules
- GA Per-brand email frequency caps source Per-brand email frequency limits let marketers cap sends to individual brand audiences regardless of portal-wide frequency caps.
July 20261 change
Minute-level gradual send scheduling
Campaign sends can now be paced in batches as small as 1% per minute instead of only hourly intervals.
June 20262 changes
Re-eligibility for Banners
Banner campaigns can re-admit users who dismissed a Banner after a configurable cooldown window instead of excluding them permanently.
Default Quiet Hours for SMS
New SMS campaigns now default to Quiet Hours pausing sends 8pm-9am local time, for both marketing and transactional messages.
May 20261 change
Hightouch 1 minor update Arbitration, frequency & send-time rules
- GA Bulk eligibility guardrail merge editing source Bulk eligibility guardrail editing can merge new conditions with existing per-message guardrails instead of only replacing them.
April 20263 changes
Workspace messaging rate limits
Workspace-level messaging rate limits regulate outgoing send speed per workspace; the setting is rolling out gradually.
AI models in journey arbitration ranking
Journey arbitration ranking formulas can now use AI models to boost priority scores from profile and contextual data, in Limited Availability.
Message delivery window guardrails
Guardrails can restrict AI Decisioning message delivery to specific time windows per channel.
February 20263 changes
Journey arbitration ranking formulas
Ranking formulas can now boost journey priority scores from profile and contextual factors, in Limited Availability.
Granular journey entry controls
Audience-based and event-based journeys gain more granular entry controls to limit how often members enter and prevent repeated sends.
Frequency capping for inbound channels
Extends Frequency Capping to inbound In-App and On-Site Messaging, limiting repetitive in-session messages by trigger type and tag.
January 20265 changes
Quiet hours rule sets
Quiet hours rule sets block sends across Email, SMS, Push, and WhatsApp during defined periods, now GA with queueing and rule preview.
State-law text frequency limits
Promotional texts are now automatically capped at three per 24 hours in regulated US states including Oregon, Florida, Oklahoma and Maryland.
Per-channel rate limits for multi-channel sends
A campaign or Canvas can set a distinct send-rate limit per channel instead of one limit shared across the whole send.
Rate control for orchestrated campaigns
Orchestrated campaigns can now use rate control to pace deliveries against volume constraints.
HubSpot 1 minor update Journeys
- GA Business days option for workflow delays source Workflow delay steps can exclude weekends, pushing a delayed action from Friday to the next business day instead of Saturday.