You delete a business rule from the System View. You can delete a business rule only if it is not used by other rules or rulesets. If the rule is being used, you must remove the business rule from the rules and rulesets using it, or make copies of it for the rules and rulesets using it, before you delete it. To see if a rule is used by other rules and rulesets, you can show the usages of the rule. (See Showing the Usages of a Business Rule or Business Ruleset.)
To delete a business rule:
In the System View, expand the Financial Management, Planning, or Essbase application type, the application, the calculation type, plan type, or database, and Rules.
Make sure the rule you want to delete is not being used by another ruleset or rule. See Showing the Usages of a Business Rule or Business Ruleset.