Entra's provisioning service emits a default dialect of its own: capitalized PATCH operations, the boolean active serialized as a string, and member removals sent as value arrays. Vendors and integrators document their products around that behavior.
The provider quirks almanac carries the three vendor attestations and the full provider dataset, each entry dated.
Building or testing a SCIM endpoint? The testing guide walks the Entra SCIM Validator and Flexi-SCIM, an on-demand SCIM test server for your own integration.