What Does It Mean by Using Existing Rules for a Cost Category?

Using existing rules for a cost category lets you flexibly define a rule that dynamically inherits the value of a cost category or enterprise project to group your costs.

For instance, you can use a tag key, Group, to tag your resources with values as team1, team2, and team3. After you create a cost category, with an inherited rule, the cost category will automatically group your costs by team1, team2, and team3.

When defining cost category rules, if you choose to use existing rules for a cost category, there will be a delay. Save the cost category, and wait until the cost category is applied.