When do you need to go beyond a standard controller and code custom apex? : salesforce visualforce
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Answer / Kirti Raman
You might need to write Custom Apex Code instead of using Standard Controllers when: 1. Complex business logic or validation rules are required that cannot be achieved with the built-in capabilities of Standard Controllers. 2. Integration with external systems is necessary, as Standard Controllers do not support out-of-the-box integration mechanisms. 3. Custom user interface elements need to be created that go beyond what's available in Visualforce components.
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