Useful Validation Rules in Salesforce.com

Here is the link to cheat sheet for some useful validation rules that you can incorporate in Salesforce.com.

Examples of Validation Rules

Some of the validation rules that I found useful are

• • Postal code is in correct format if the country is Canada or US
  • State is valid if the country is Canada or US
  • Country is a valid 2 letter ISO code
  • Number entered is even or odd number
  • Number entered is a multiple of another number
  • Phone number is in (999) 999-9999 format
  • Date entered is a weekday or weekend
  • Date entered is the last day of the month
  • Conditionally require a field based on the value of other field
  • Only the record owner can make changes to a particular field
  • Cross object validation rules