---
schema_version: "1"
id: 1921a40cc127305b043baeb3ea130eab3ebdaddfdee18beef95a9300a1c632f3
title: Prebuild Burst Sending
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_es_prebuild_burst_sending.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_es_prebuild_burst_sending.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 8f6327999919cc63eeb65cc00df36b0d29e0fe2892882936789ecd436bffb612
description: When enabled in your account, Prebuild Burst Sending allows you to send emails fast. The audience is locked down and the emails are built when the schedule send time is set. Use this feature for flash sales or emergency messaging.
products:
  - Marketing
  - Marketing Cloud Engagement
release: "264"
---
# Prebuild Burst Sending

When enabled in your account, Prebuild Burst Sending allows you to send emails fast. The audience is locked down and the emails are built when the schedule send time is set. Use this feature for flash sales or emergency messaging.

![Example](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_email-264-0-0-production-enus/a0b807ef-dfbb-412c-b26e-310d91f2d6df/images/icon_example.png)

Example On Wednesday, you set the scheduled send time to send a flash sale email on Friday morning at 9 AM. The system immediately begins building the emails for the audience and stores the emails until send time. Then, on Friday morning at 9 AM the emails are sent fast because the system built the email and compiled the audience on Wednesday.