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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?

Related Errors

Required Field Missing

REQUIRED_FIELD_MISSING

Invalid Field for Insert/Update

INVALID_FIELD_FOR_INSERT_UPDATE

Related How-To Guides

How to Troubleshoot Salesforce Errors

Learn how to identify, analyze, and resolve common Salesforce errors quickly and effectively.

How to Create Validation Rules in Salesforce

Learn how to create validation rules to enforce data quality and business logic in your Salesforce org.

Related Use Cases

Debug a Salesforce Error

Paste an error. Get the root cause in seconds.

“Apex error ‘FIELD_CUSTOM_VALIDATION_EXCEPTION’ on saving Opportunity — identify which validation rule fired and why.”

FIELD_CUSTOM_VALIDATION_EXCEPTION
Object: Opportunity
Action: Save record
Root Cause
Rule: Require_Amount
Amount must be > 0 when Stage ≠ Prospecting
Set Amount > 0 or change Stage to Prospecting
1 validation rule identified

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