To update a stack group, you can modify its template, parameter settings, permissions, accounts, regions, resource groups, fault tolerance settings, and maximum number of concurrent accounts. If you update a stack group template, all stacks created from the stack group template are updated. This topic describes how to update a stack group.


  1. Log on to the ROS console.
  2. In the left-side navigation pane, click Stack Groups.
  3. In the upper-left corner, select the region where your stack group resides from the drop-down list.
  4. On the Stack Groups page, find the stack group that you want to update, and click Update in the Actions column.
  5. In the Select Template step, specify a template, and then click Next.
    • If you select Use Existing Template, the template is not updated.
    • If you select Replace Current Template, select a new template to replace the old one. After the old template is replaced, all stacks that are created from the old template are also updated. If you want to update only some of the stacks, specify the execution accounts and regions in the Set Deployment Options step.
  6. In the Configure Template Parameters step, modify parameter settings in the Stack Group Description and Parameters sections, and then click Next.
  7. In the Configure Stack Group step, modify parameter settings in the Admin Role and Execution Role sections, and then click Next.
  8. In the Set Deployment Options step, modify parameter settings in the Accounts, Regions, Resource Group, Maximum Number of Concurrent Accounts, and Fault Tolerance sections, and then click Next.
  9. In the Check and Confirm step, check your parameter settings, and then click Confirm.