The process of building custom applications and tools that interact with Microsoft SharePoint, including SharePoint Online in Microsoft 365.
Hi @Sherry Friesen,
I'm glad to hear you solve the problem ,if you have any issue about SharePoint, you are welcome to raise a ticket in this forum.
By the way, since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others." and according to the scenario introduced here: Answering your own questions on Microsoft Q&A, I would make a brief summary of this thread:
[Sharepoint Document library - Cannot edit/update folder properties via the MS API]
Issue Symptom:
Could create a folder in graph but unable to add the properties to the new created folder
Solution:
It's a permssison issue. We need at least Sites.ReadWrite.All permission to update the folder properties.
You could click the "Accept Answer" button for this summary to close this thread, and this can make it easier for other community member's to see the useful information when reading this thread. Thanks for your understanding!