Salesforce Platform Developer I Certification Guide

Web service calls in triggers

Imagine the following use case: when you create an account with a company registration number, you need to get the company details from a trusted database, such as Data.com or D&B. You need to do a web service call after the insertion of your account. I can hear you think: I'll create a trigger and write some separate logic to do the callout. That's right!

You need to know that in a trigger context, your code always executes synchronously and you may not perform a web service callout during the execution of synchronous trigger logic. So, we need to do the callout asynchronously.

At an advanced level, you will learn about the details of asynchronous actions. For now, I'll outline the possibilities for running ...