Why doesn't my KWizCom app work on a group site or communication site? I've enabled custom scripting tenant wide already.
In order to enable custom scripting for these site templates, run the following command in Powershell:
Connect-SPOService -Url https://[yourtenant]-admin.sharepoint.com -credential admin@[tenant].onmicrosoft.com Set-SPOSite -Identity https://[yourtenant].sharepoint.com/[siteurl] -DenyAddAndCustomizePages 0
This can be done via SharePoint Online Management Shell and does not require you to wait 24 hours as opposed to doing this tenant wide via the SharePoint Admin center.
More information regarding how to enable custom scripting in various methods can be found here: