Error when trying to update values to a Schema Extension in the Graph API

Question

I was trying to update the values for a schema extension through the graph API using the following patch request.

graph.api(https://graph.microsoft.com/v1.0/users/{user-id}).patch({
          [SCHEMA_ID]: {
             "prop1": 0,
             "prop2": 1,
             "prop3": 2,
           }
        });

When I run this request I get the following error.

Error: The number of extension values of the object has exceeded its limit. Please reduce the number of values and retry your request.

I believe the schema extension limit of 100 has been exceeded, but I am unsure how to remove these extension values as the schema extensions have been deleted.

Is there a way to fix this? Thank you for your help!

Answer 1

Hello @Ryan Fraser,

To delete the extension property and its associated value from the resource instance, set its value to null.

But if a schema extension definition is deleted without setting the schema extension to null, it makes the property and its associated user data undiscoverable.

Documentation reference:

• https://learn.microsoft.com/en-us/graph/extensibility-overview?tabs=http#:~:text=Considerations%20for%20using%20schema%20extensions
• https://learn.microsoft.com/en-us/graph/extensibility-overview?tabs=http#:~:text=Update%20or%20delete%20a%20schema%20extension%20property

Hope this helps.

If the reply is helpful, please click "Accept Answer" and kindly upvote it. If you have additional questions about this answer, please click "Comment".