[For beginners] Rough explanation! About SCIM and its role

It's been a long time
This is Tama-chan from the System Solutions Department!
It's getting a little colder in the mornings and evenings, and I can feel autumn coming
I had the opportunity to work with SCIM in my work
At first, I had no idea what SCIM was, but after studying it I began to understand it a little better, so I thought I'd leave a memo here!
I hope that this blog will help you understand what SCIM is
What is SCIM?
SCIM stands for System for Cross-domain Identity Management and is a standard protocol for automatically synchronizing user and group information between cloud services
Simply put, it is a rule for managing login information
SCIM is one of the technologies that makes SSO (Single Sign On) possible!
Next, before we look at how SCIM specifically works, let's clarify the meaning of the two terms IdP and SP
What is an IdP?
IdP stands for Identify Provider and is a system that provides authentication information (username and password) required to access cloud services, etc.
In other words, it is a service that stores your login authentication information.
Major IdPs include Okta and Azure AD

What is SP?
SP is an abbreviation for Service Provider and refers to cloud services and systems such as Office 365 and Slack
If you check the systems you use regularly, you'll find that they are actually SPs!

What is the role of SCIM?
SCIM acts as an intermediary between the IdP and SP
Specifically, we have changed the format of the login information stored in the IdP so that it can also be used by the SP
This means that if you edit your login information on the IdP, you will also be able to log in to the SP using the edited login information
In particular, if you need to create multiple users in SP (Office 365, Slack, etc.), you would normally need to create them for each SP,
With SCIM, you can create a user once in your IdP (Okta, Azure AD, etc.) and apply it to multiple SPs!

That's all about SCIM
What do you think?
I hope this article will help you understand SCIM a little better
Reference websites
SCIM (Okta) » Admin by Request
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