How to set Property Bag values in SharePoint Modern Sites using SharePoint Online .Net CSOM
If you think setting Property Bag values programmatically for Modern SharePoint sites using CSOM would be as straight forward as in the Old Classic SharePoint sites, then there is a surprise waiting for you.
As you can see below, in the old C# CSOM this code would set the Property Bag values as follows:
The challenge with the above method is that the PropertyBag values are not persisted after saving.… [Keep reading] “How to set Property Bag values in SharePoint Modern Sites using SharePoint Online .Net CSOM”