Error in SCIM provisioning; not able to deserialize the resource received from your SCIM endpoint

Question

Hi,

I am getting an error when scim is trying to provision users:

SystemForCrossDomainIdentityManagementServiceIncompatible

Error message

We are not able to deserialize the resource received from your SCIM endpoint because your SCIM endpoint is not fully compatible with the Azure Active Directory SCIM client. Here is the resource we received from your SCIM endpoint.

I am trying to understand why this message is being thrown and ensure it's nothing on the Azure side. I am also working with our 3rd party on the integration on their side also.

Thanks!