# Using AWS Service Catalog Constraints
<a name="constraints"></a>

You apply constraints to control the rules that are applied to a product in a specific portfolio when the end users launches it. When the end users launches the product, they will see the rules you have applied using constraints. You can apply constraints to a product once it is put into a portfolio. Constraints are active as soon as you create them, and they're applied to all current versions of a product that have not been launched.

**Topics**
+ [Launch Constraints](constraints-launch.md)
+ [Notification Constraints](constraints-notification.md)
+ [Tag Update Constraints](constraints-resourceupdate.md)
+ [Stack Set Constraints](constraints-stackset.md)
+ [Template Constraints](catalogs_constraints_template-constraints.md)