Why can there only be one trigger for each Salesforce Object?

You can have n number of triggers on single objects, but best practice is to have all trigger event operations into the singe trigger with the if conditions.

Hi Prachi,

Triggers operate in collections of 200 records.

• If you update one record in a DML statement, the trigger will have that one record in its collection.
• If you update 100 records in a DML statement, the trigger will have 100 records in its collection.
• If you update 200 records in a DML statement, the trigger will have 200 records in its collection.
• If you update 1000 records in a DML statement, the platform will chunk the 1000 records into groups of 200. Your trigger will run 5 times, with 200 records in each invocation.

Triggers must be written to handle records in collections of 200. Your use case currently might only be that one record will be updated and one HTTP Request will be made to an external system but there are plenty of ways that more than one Account can be updated at a time and your code needs to handle those scenarios gracefully.

Thanks.