Pre-Compute Segments and send Push at the right time

Pre-Computing the segments allows you to send highly time-sensitive campaigns at the right time. It ensures that segmentation is done in advance so that you can send campaigns immediately at the scheduled time.

It is highly useful when you have to send a broadcast/multicast, say for a Flash Sale, which starts at 2:00 pm, and you want users to start receiving messages at 2:00 pm itself without spending even a few seconds on segmentation.

info	Note 99.9 percent of queries at MoEngage get executed within 30 seconds. This feature is handy when your segment is complex (outliers of your creative genius) or you want to send out your campaigns immediately at the scheduled time, without even few seconds of delay.

Enabling Pre-Compute

On the Scheduling page (Step 3) of campaign creation, select the check box Compute target audience in advance to ensure that campaigns are sent faster and at the right time. This is beneficial for cases when you are using a complex segmentation query that usually takes some time to run.

How does it work?

Generally, while running a campaign, segmentation starts at the campaign's scheduled time and fetches users from the segmentation at the time of sending the campaign so that no potential customer is missed.

But in cases where the timing of the message is of greater essence, and marketers don't want campaigns to be delayed by even a few minutes taken to calculate segments, pre-compute helps ensure timely delivery.

Pre-Compute solves this problem by running the segmentation query in advance anytime between 30 mins to 2 hours. Hence, at the campaign send time, the target users are already available, and campaign sending starts right away at the scheduled time without any delays.

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Information

Using Precompute in a campaign comes with a trade-off that some users may be excluded from the campaign. When segmentation is performed before the campaign start time (e.g., 30 minutes prior), any users meeting the criteria after the precomputation but before the campaign launch are not included in the campaign.

For Example, if a campaign targeting users who performed an "Add to Cart" action in the last 24 hours is scheduled to go live at 5:00 PM, segmentation precomputed at 4:30 PM excludes users who perform the action between 4:30 PM and 5:00 PM.

So, it involves the trade-off between the timely delivery of a campaign vs capturing all the intended users.

Editing a campaign when pre-compute is ON

If the segmentation query of the campaign was edited 30 mins prior to the campaign sending time, then the list of users computed in advance will be dropped, and the target users will be fetched at the campaign sending time. In this case, the pre-computed segment will not be honored, and the campaign will be sent in the usual flow.