Field Custom Validation Exception

FIELD_CUSTOM_VALIDATION_EXCEPTION

This error occurs when a custom validation rule prevents a record from being saved. The validation rule evaluates to true, blocking the operation.

Common Causes

  • A validation rule formula evaluates to true
  • Required field conditions are not met
  • Business logic validation fails
  • Cross-field validation rules fail

Traditional Troubleshooting

1

Review the validation rule in Setup > Object Manager

2

Check the error message for specific field requirements

3

Verify all required fields are populated

4

Test the validation rule formula in the rule editor

5

Check field-level security and sharing settings

Solve with Clientell

Instead of manually troubleshooting, use Clientell to instantly identify and fix this error:

I was trying to save an Opportunity record, but it threw a ‘FIELD_CUSTOM_VALIDATION_EXCEPTION’ error. Can you find which validation rule caused it and explain what condition failed?