# Adding Constraints
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You should add constraints to control how users engage with products. For more information about the types of constraints that AWS Service Catalog supports, see [Using AWS Service Catalog Constraints](constraints.md). 

 You add constraints to products after they have been placed in a portfolio.

**To add a constraint to a product**

1. Open the Service Catalog console at [https://console.aws.amazon.com/servicecatalog/](https://console.aws.amazon.com/servicecatalog/).

1. Choose **Portfolios** and select a portfolio. 

1. In the portfolio details page, expand the **Create constraint** section and choose **Add constraints**. 

1. For **Product**, select the product to which to apply the constraint.

1. For **Constraint type**, choose one of the following options:

   **Launch** – Allows you to assign an IAM role to the product that is used to provision the AWS resources. For more information, see [AWS Service Catalog Launch Constraints](constraints-launch.md).

   **Notification** – Allows you to stream product notifications to an Amazon SNS topic. For more information, see [AWS Service Catalog Notification Constraints](constraints-notification.md).

   **Template** – Allows you to limit the options that are available to end users when they launch the product. A Template consists of a JSON–formatted text file that contains one or more rules. Rules are added to the CloudFormation template used by the product. For more information, see [Template Constraint Rules](reference-template_constraint_rules.md).

    **Stack Set** – Allows you to configure product deployment across accounts and regions using CloudFormation StackSets. For more information, see [AWS Service Catalog Stack Set Constraints](constraints-stackset.md).

   **Tag Update** – Allows you to update tags after the product has been provisioned. For more information, see [AWS Service Catalog Tag Update Constraints.](https://docs.aws.amazon.com/servicecatalog/latest/adminguide/constraints-resourceupdate.html)

1.  Choose **Continue** and enter the required information.

**To edit a constraint**

1. Sign in to the AWS Management Console and open the AWS Service Catalog administrator console at [https://console.aws.amazon.com/catalog/](https://console.aws.amazon.com/catalog/).

1. Choose **Portfolios** and select a portfolio. 

1. In the **Portfolio details** page, expand the **Create constraint **section and select the constraint to edit.

1. Choose **Edit constraints**.

1. Edit the constraint as needed, and choose **Save**.