Why Before Trigger should not have DML for other objects

168 Comments / apex, Apex Code Practice, Salesforce, Trigger Best Practices / By

if you update or delete a record in its before trigger, or delete a record in its after trigger, you will receive a runtime error.

This includes both direct and indirect operations.

For example, if you update account A, and the before update trigger of account A inserts contact B, and the after insert trigger of contact B queries for account A and updates it using the DML update statement or database method, then you are indirectly updating account A in its before trigger, and you will receive a runtime error.

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168 thoughts on “Why Before Trigger should not have DML for other objects”

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