When setting up sharing permissions in Clever for Next Gen Math, you will need to create a Share by Schools rule. See Sharing Permissions: Share by Rules on Clever for more.
IMPORTANT
It's important to share only the data for each school that will require access to Next Gen Math.
Step 1: Navigate to Next Gen Math within your Clever Dashboard
Step 2: Select the Data Sharing tab then select Share by Schools
Step 3: Select each of the schools that will need to connect to Next Gen Math
Step 4: Save your changes, and you're done!