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Moderate Feed Items with Triggers

Write a trigger for FeedItem to automate the moderation of posts in an org or Experience Cloud site. Use triggers to ensure that posts conform to your company’s communication policies and don’t contain unwanted words or phrases.

Available in: Enterprise, Performance, Unlimited, and Developer Editions

User permissions needed to save Apex triggers for FeedItem:

Author Apex

Write an Apex before insert trigger to review the feed item body and change the status of the feed item if it contains a blocklisted phrase. To create a trigger for feed items from Setup, enter FeedItem Triggers in the Quick Find box, then select FeedItem Triggers. Alternatively, you can create a trigger from the Developer Console by clicking File | New | Apex Trigger and selecting FeedItem from the sObject drop-down list.

This example shows a before insert trigger on FeedItem that is used to review each new post. If the post contains the unwanted phrase, the trigger also sets the status of the post to PendingReview.

1trigger ReviewFeedItem on FeedItem (before insert) {
2    for (Integer i = 0; i<trigger.new.size(); i++) {
3
4        // We don't want to leak "test phrase" information.
5
6        if (trigger.new[i].body.containsIgnoreCase('test phrase')) {
7            trigger.new[i].status = 'PendingReview'; 
8            System.debug('caught one for pendingReview');
9        }
10    }
11}

Apex Developer Guide

Moderate Feed Items with Triggers