Validation Rule

What are the Validation Rules in Salesforce?

Validation rules consist of standards to guarantee that the data entered into Salesforce meets specific criteria before it gets saved. There are two main purposes of Validation rules in Salesforce a) to prevent users from entering inaccurate or insufficient information. b) to maintain data consistency across various fields and objects. 

• System Validation Rules: Salesforce has pre-built rules like "preventing future dates for historical records" that maintain fundamental data consistency.
• Custom Validation Rules: These are created by administrators to address your organization's unique needs. Formulas and expressions can be defined to validate data in different fields.

How to Create Validation Rules?

1. Click on the Object Manager to find the object in which you want to create the validation rules.
2. In the detail page of that object, there is a left sidebar to find the  Validation tab.
3. Click on the "Validatino Rule".
4. Click on the "New" button.
5. Specify the conditions that tha validation rule must meet.
6. Give the error message that will appear when the requirements are not satisfied.
7. Click on the "Save" button.

 

https://developer.salesforce.com/docs/atlas.en-us.usefulValidationRules.meta/usefulValidationRules/fields_useful_field_validation_formulas.htm

Examples of Validation Rules | Salesforce Developers

 

https://salesforcegeek.in/20-important-validation-rules-in-salesforce/

20 Important Validation Rules in Salesforce - Salesforce Geek