What is the Order of Execution (Rules, Triggers etc.) in Salesforce & Debug Log?

Hey Vikas,

The order of execution in Salesforce is as follows:

1. System Validation rule (required field, field format)
2. Before Triggers are executed
3. Custom Validation rules are checked
4. After Triggers are executed
5. Assignment Rules are executed
6. Auto-Response Rules are executed
7. Workflow Rules are executed
8. Before and after triggers are executed one more time if the workflow rule updates a field
9. Escalation Rules are executed
10. Parent Rollup Summary Formula or Cross Object Formula fields are updated in the respective objects. (These parent records also goes through the entire execution order)
11. Criteria Based Sharing rules are evaluated
12. Any Post-Commit Logic is executed (like sending an email)

Hope this helps.