how to create trigger for custom object in salesforce

How do I create a trigger in Salesforce?

• From Setup, select Customize and then click the object that you want to add the trigger to.
• Click Triggers and then click New.
• To define your trigger, enter Apex code similar to this sample code.
• Make sure that Is Active is selected.
• Click Save.

Full Answer

How do I create an object trigger in Salesforce?

Configure Objects and TriggersFrom Sales or Service Cloud, click Setup.Under Build, click Customize.Select desired object.Click Triggers.Click New.In the Apex Trigger window, select Is Active.Enter the following code, substituting the desired object name where indicated with Object Name. ... Save the trigger.More items...

How do I write a trigger to a file object in Salesforce?

While creating the trigger on Attachment object, we should be careful as it will be triggered for any Standard or Custom Object with Attachments....Add trigger on Attachment and NoteInside Developer Console Click "File"New | Apex Trigger.Give a name and select "Attachment" or "Note" SObject from drop down.

Can we write trigger on custom setting?

Its not possible to write a trigger on the Custom Settings. Though you are able to write a trigger on Custom Settings..you will not be able to Update the Records as Custom Settings do not have the Lookup Fields to associate your Custom Setting with any of the Objects(be it Standard or Custom).

How do you control trigger using custom settings?

All you need to do is setup a hierarchy custom setting object by going to Setup -> Custom Settings and then create Checkbox (Boolean) fields for each object you have a trigger for that you may want to bypass. After you're done setting that bad boi up.

Can we write trigger on user object in Salesforce?

Yes, it is possible to automatically add the Account/Opportunity Owner to Account and Sales Team. You can accomplish this with a trigger/class on Account/Opportunity object. Your apex code should write directly to AccountTeamMember and OpportunityTeamMember objects.

Can we write trigger on ContentDocumentLink?

In Lightning Experience, both the ContentDocument and related ContentDocumentLink records are deleted, and by design Salesforce only fires the trigger on ContentDocument, not the trigger on ContentDocumentLink.

Can we write trigger on custom metadata?

It's not possible to write a trigger/Workflow on custom metadata object. If you need trigger you will need to use custom object .

What is the difference between custom setting and custom object?

Custom Object : Custom object is like any Database table that we used to have in SQL or in any other database. Custom Setting : Custom Setting is like configuration file that we used to have.

How do I query custom settings in Salesforce?

You can create a custom setting in the Salesforce user interface: from Setup, enter Custom Settings in the Quick Find box, then select Custom Settings. After creating a custom setting and you've added fields, provide data to your custom setting by clicking Manage from the detail page.

How do I enable Apex triggers?

Configure Objects and TriggersFrom Sales or Service Cloud, click Setup.Under Build, click Customize.Select desired object.Click Triggers.Click New.In the Apex Trigger window, select Is Active.Enter the following code, substituting the desired object name where indicated with Object Name. ... Save the trigger.More items...

How do you make a trigger inactive in Salesforce?

Turn off trigger in production orgAlternative: edit the triggername. trigger-meta. xml in an existing project and change the status node to false: Inactive.Save the change locally.Deploy the trigger to production.

What are custom settings in Salesforce?

Custom Settings in Salesforce are similar to custom objects in Salesforce. It allows users to create custom sets or custom chunks of data which creates easier access of data to users. Some particular data that you want to automatically fetch from the records can be easily done by using Custom Settings.