S harePoint Site templates are now replaced with Site designs in Modern Sites. We can create custom site designs using some json script(s). Site Design allows to create lists, create list views, apply theme, customize navigation, create content types, create site columns and so on. Click here to see JSON scheme reference for creating custom site design. Endpoint to apply site design as a part of flow is as below. _api/Microsoft.Sharepoint.Utilities.WebTemplateExtensions.SiteScriptUtility.AddSiteDesignTaskToCurrentWeb We must use “Send Http Request to SharePoint” action to make an API call to SharePoint. SiteDesignId must be part if body, this is GUID of the SharePoint site design you need to apply. We can line up sequence of calls if we need to apply multiple site designs to a single site. We can now wait for few mins and all our sited designs will get applied or we can also check the status by making another API call with below endpoint. You just need to pass the Apply Design ta