Home/Glossary/What is send-time optimisation?

CRM and sales

What is send-time optimisation?

Send-time optimisation is a broadcast setting that, instead of sending to everyone at one moment, schedules each recipient's message for the time of day they have historically read or replied fastest, within an allowed window and quiet hours. Contacts with no history get the campaign's default time.

Updated 29 Aug 2026 · 1 min read

On this page
  1. Why it matters
  2. In VGraple CRM
  3. Related terms

CRM AND SALES

Send-time optimisation

Send-time optimisation is a broadcast setting that, instead of sending to everyone at one moment, schedules each recipient's message for the time of day they have historically read or replied fastest, within an allowed window and quiet hours. Contacts with no history get the campaign's default time.

broadcastread ratequiet hoursmarketing messages lite api

Send-time optimisation in one line

Why it matters

A message read within minutes of arrival gets acted on; one buried under the evening's notifications does not. Optimised timing lifts read and reply rates without changing the message, and it spreads the send, which also keeps pacing calm.

In VGraple CRM

Enable it on a broadcast and set the window; per-contact best times come from read and reply timestamps across past campaigns and conversations, and the report shows the distribution of send times and their results. Meta-side optimisation is also applied when a marketing send routes through the Marketing Messages API.

Broadcast, Read rate, Quiet hours, Marketing Messages API.

Frequently asked questions

How much history is needed?
A few reads or replies per contact; new contacts use the default time.
Does it delay time-sensitive campaigns?
Set a narrow window, or turn it off for flash offers.
Does it respect quiet hours?
Yes. Optimised times are chosen only inside the allowed window, and anything that would fall in quiet hours moves to the next open slot.

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