# Install the Salesforce Billing Extension Learn how to install the Salesforce Billing extension. ## Before you begin Before installing the Salesforce Billing extension, you must install the following: ### Install the Stripe app for Salesforce Platform Follow the steps in the [Stripe app for Salesforce Platform installation guide](https://docs.stripe.com/use-stripe-apps/stripe-app-for-salesforce/installation-guide.md). ### Install Salesforce CPQ 1. Apply the `Salesforce CPQ License` permission and set the license to the user who installs the package in your organization. 1. Navigate to the Salesforce Quote-to-Cash [website](https://install.steelbrick.com/), scroll down to the **Salesforce CPQ** package installation links, and select the most recent release. If you’re installing into a sandbox environment, click the **Sandbox** link. If you’re installing it into a production environment, click the **Production** link. You might see a prompt to log into your Salesforce organization if you haven’t logged in previously. 1. Make sure that **Install for All Users** is selected and click **Install**. 1. You need to approve access to and from third-party websites. Check the **Grant Access** checkbox, and click **Continue**. 1. After completing the installation, go to **Setup** > **Apps** > **Packaging** > **Installed Packages** and click **Configure** in Salesforce CPQ. 1. Select the **Pricing and Calculation** tab and click **Authorize new calculation service**. 1. To enable multiple orders, go to the **Order** tab, select the **Allow Multiple Orders** checkbox, and set the `Default Order Start Date` to `Quote Start Date`. 1. Click **Save** to save your configuration. ### Install Salesforce Billing 1. Navigate to the [Salesforce Quote-to-Cash](https://install.steelbrick.com/) webiste, scroll down to the **Salesforce Billing** package installation links, and select the most recent release. If you’re installing it into a sandbox environment, click the **Sandbox** link, and if you’re installing it into a production environment, click the **Production** link. You might see a prompt to log into your Salesforce organization if you haven’t done so already. 1. Make sure **Install for All Users** is selected, and click **Install**. 1. After completing the installation, verify it in **Setup** > **Apps** > **Packaging** > **Installed Packages**. ## Install the Salesforce Billing Extension After you’ve installed the prerequisites, install the `Stripe Extension Package for Salesforce Billing` from the **Extensions** section in the app wizard ![](https://b.stripecdn.com/docs-statics-srv/assets/sf_platform_install_extensions.ff2398668c498f10e472360b9f1ad0b2.png) 1. Make sure that you’ve only selected **Install for Admins Only**, and click **Install**. 1. In the third-party access dialog, check the **Grant Access** checkbox and click **Continue**. 1. When the installation completes, you receive a confirmation email. 1. Navigate to **Setup** > **Apps** > **Packaging** > **Installed Packages** and verify that the package is installed. ## Next steps - [Configure the Salesforce Billing Extension](https://docs.stripe.com/use-stripe-apps/salesforce-billing-extension/configuration.md)