An after trigger is used to perform operations on records after they have been saved to the database. A common use case is updating related records or performing actions that require the record’s ID, which isn’t available until after the record is inserted.
Here’s an example:
trigger AccountAfterInsert on Account (after insert) {
List<Contact> contactsToCreate = new List<Contact>();
for (Account acc : Trigger.new) {
// Create a new Contact for each Account inserted
Contact newContact = new Contact();
newContact.LastName = 'Primary Contact';
newContact.AccountId = acc.Id; // Use the Account's ID
contactsToCreate.add(newContact);
}
// Insert all new Contacts
if (!contactsToCreate.isEmpty()) {
insert contactsToCreate;
}
}
