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AWS IAM Identity Center vs Microsoft Entra External ID comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 2, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
6.7
AWS IAM Identity Center boosts ROI by enhancing security, streamlining access, and reducing administrative overhead, improving operational efficiency.
Sentiment score
4.0
Organizations saved time and costs with Microsoft Entra External ID, despite varied productivity impacts and integration learning curves.
The return on investment includes operational efficiency gains, security risk reduction, compliance with regulations, improved user experience, productivity benefits, reduced overhead, and better security posture.
DevOps Engineer | Cloud Architect & Automation Specialist | Kubernetes, Terraform, Ansible, AWS EKS at Phoenix Marketing & Advertising
We have achieved significant time efficiencies with AWS IAM Identity Center.
Director of Engineering at Infosys
It has led to cost savings as well as time savings because I can use a single solution for all applications.
Associate Director Automation at Dubai Holding
Companies can leverage it for setting up external identities without needing to develop their own solutions.
Lead Enterprise Architect at DigyCorp
In terms of return on investment, prior to using this product, our company managed our own mail server with all internal authentication happening on premises, resulting in a ROI in the thousands every year.
Network Security Administrator at a retailer with 51-200 employees
 

Customer Service

Sentiment score
6.5
AWS IAM Identity Center users find documentation lengthy but praise AWS's prompt and helpful support and appreciate diverse support options.
Sentiment score
4.9
Microsoft Entra External ID support experiences are mixed, with praise for knowledgeable staff but concerns about continuity and accessibility.
AWS provides immediate solutions and assistance whenever needed, especially if issues arise that cannot be handled internally.
Director of Engineering at Infosys
They are prompt, keep you updated, and provide excellent assistance.
AWS DevOps Engineer at CTB Solutions
AWS offers better assistance plans for their services.
Strategist | Webops and Blockchain at Indian Institute of Technology, Madras
Companies without a Microsoft license for Entra ID or Azure portal cannot add Azure AD B2C, creating logistical issues for some of my clients who are unable to evaluate the platform.
Consultant at Artifield
The support for business applications, infrastructure support, and Entra has been mostly positive with highly skilled technicians.
Sales Manager - Program Manger at Altitudo srl
The documentation is very thorough, reducing the need for support.
Cloud Security Consultant at a manufacturing company with 10,001+ employees
 

Scalability Issues

Sentiment score
7.7
AWS IAM Identity Center excels in scalability and adaptability, but could improve in user group syncing and third-party integration.
Sentiment score
6.2
Microsoft Entra External ID offers scalability and flexibility but faces latency issues and lacks some authentication methods.
AWS Identity Center successfully supports scalable deployments, allowing additional resources as the company grows.
AWS Cloud Engineer at BINO-K
The scalability of AWS IAM Identity Center is excellent.
AWS DevOps Engineer at CTB Solutions
It can handle both a small number of users and a bigger number of users efficiently.
AWS Certification Full Stack Cloud Engineer at Social Economic Accelerator LabSocial
This is one of EID's weak points compared to Azure AD B2C, which offers customizable authentication options, including attribute and password combinations.
Consultant at Artifield
End-user workloads experience increased latency in a cloud environment compared to on-premises resources.
Director at iicon ltd
Microsoft Entra External ID is quite scalable, and I would rate its scalability between eight and nine out of ten.
Lead Enterprise Architect at DigyCorp
 

Stability Issues

Sentiment score
8.0
AWS IAM Identity Center boasts 99.96% uptime, stability, reliability, with minor regional login impacts swiftly addressed by AWS.
Sentiment score
5.2
Microsoft Entra External ID is a stable SaaS, rated 8-10/10, with minimal downtime, reliable except for occasional external issues.
There can be issues if there is an outage on AWS's side, which could prevent logging in because your region might be down, affecting the Identity Center's availability.
Sr DevOps Engineer at HTC Global
It offers 99.96% uptime.
AWS DevOps Engineer at CTB Solutions
Stability-wise, it is functioning well without any outages or crashes.
AWS Certification Full Stack Cloud Engineer at Social Economic Accelerator LabSocial
I'd rate the stability of the Microsoft Entra External ID as a 10.
Director of Technology at a hospitality company with 51-200 employees
The stability of this solution is very good.
Associate Director Automation at Dubai Holding
I have not encountered any stability issues with Microsoft Entra External ID.
Lead Enterprise Architect at DigyCorp
 

Room For Improvement

AWS IAM Identity Center needs UI clarity, better integration, flexible access controls, enhanced tools, and improved support for users.
Microsoft Entra External ID needs cost reduction, faster sync, better security, improved SSO, UI, integration, support, and pricing clarity.
Having a lot of users on one instance is hard to configure, so I hope for more flexibility and ease in configuration.
AWS Certification Full Stack Cloud Engineer at Social Economic Accelerator LabSocial
Enhancements could include automation tools or a centralized dashboard for managing roles and policies across multiple accounts, simplifying the process.
DevOps Engineer | Cloud Architect & Automation Specialist | Kubernetes, Terraform, Ansible, AWS EKS at Phoenix Marketing & Advertising
When configuring it with third-party tools, like Active Directory, the naming convention of permission sets requires careful attention, which can be confusing.
Sr DevOps Engineer at HTC Global
This is particularly challenging during enterprise agreement renewals, as it's difficult for customers to review costs leading to lengthy negotiations.
Sales Manager - Program Manger at Altitudo srl
Enhanced customizable login options and the ability to use attribute password logins are critical features that are required for Microsoft Entra External ID to gain dominance in the authentication market.
Consultant at Artifield
I would like to see a more detailed alert system that provides a summary of why alerts are generated, who is generating them, and the reasons behind it.
Cloud Security Consultant at a manufacturing company with 10,001+ employees
 

Setup Cost

AWS IAM Identity Center is cost-effective, mainly free, with extra charges for premium features and competitive with other providers.
Microsoft Entra External ID pricing varies, cost-effective for some, expensive for others, challenging cloud transition impacts evaluation.
AWS IAM Identity Center is available as a free service by default.
AWS Cloud Engineer at BINO-K
It is not that expensive, rated at three out of ten for costs.
Sr DevOps Engineer at HTC Global
Pricing for AWS IAM Identity Center is very affordable, rated at two out of ten with one being cheap.
AWS DevOps Engineer at CTB Solutions
Regarding pricing, the cost seems high for single sign-on, especially for external applications like Oracle.
Associate Director Automation at Dubai Holding
Microsoft's pricing is complex and difficult to fathom due to a range of different licensing options.
Director at iicon ltd
The cost can be a factor for Microsoft Entra External ID, but in general, it offers a scalable and efficient solution compared to deploying individual solutions.
Lead Enterprise Architect at DigyCorp
 

Valuable Features

AWS IAM Identity Center centralizes permission management with templates, role-based access, MFA, and SSO for streamlined security.
Microsoft Entra External ID enhances security and efficiency by simplifying identity management and integration without on-premises infrastructure.
It provides the least privilege-based access control, which limits users to only the operations they need to perform without interfering with unrelated configurations.
Sr DevOps Engineer at HTC Global
These features allow for excellent micro-level control over resources, ensuring specific permissions are granted.
Strategist | Webops and Blockchain at Indian Institute of Technology, Madras
Its valuable features include granular access control, allowing precise control over who can access specific AWS resources and under what conditions using JSON-based policies.
DevOps Engineer | Cloud Architect & Automation Specialist | Kubernetes, Terraform, Ansible, AWS EKS at Phoenix Marketing & Advertising
It is crucial for hybrid environments, especially for integrating existing on-site infrastructures with cloud-based Active Directory, such as in Office 365 implementations.
Director at iicon ltd
EID unifies workforce users with external business partners, which is a very strong feature.
Consultant at Artifield
The detailed monitoring and reporting in Microsoft Entra External ID support compliance efforts effectively.
Manager, Identity & Access Management at a financial services firm with 10,001+ employees
 

Categories and Ranking

AWS IAM Identity Center
Ranking in Identity and Access Management as a Service (IDaaS) (IAMaaS)
7th
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
11
Ranking in other categories
Single Sign-On (SSO) (8th)
Microsoft Entra External ID
Ranking in Identity and Access Management as a Service (IDaaS) (IAMaaS)
9th
Average Rating
7.8
Reviews Sentiment
5.7
Number of Reviews
17
Ranking in other categories
Customer Identity and Access Management (CIAM) (4th), Microsoft Security Suite (17th)
 

Mindshare comparison

As of February 2026, in the Identity and Access Management as a Service (IDaaS) (IAMaaS) category, the mindshare of AWS IAM Identity Center is 1.5%, up from 1.1% compared to the previous year. The mindshare of Microsoft Entra External ID is 2.1%, up from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Identity and Access Management as a Service (IDaaS) (IAMaaS) Market Share Distribution
ProductMarket Share (%)
AWS IAM Identity Center1.5%
Microsoft Entra External ID2.1%
Other96.4%
Identity and Access Management as a Service (IDaaS) (IAMaaS)
 

Featured Reviews

Jayesh Patil - PeerSpot reviewer
Associate Software Engineer
Multi-factor authentication and single sign-on enhance user management capabilities
From my perspective, AWS IAM Identity Center is already enhanced and has many capabilities, covering numerous areas. I don't think they need any improvements currently. It works well for us. If users want single sign-on and multi-factor authentication, they can easily opt for AWS IAM Identity Center. I recommend AWS IAM Identity Center as it is beneficial to use. It helps significantly in maintaining users within products. I would rate AWS IAM Identity Center as nine out of ten because we use it as our main primary sign-on feature for our product. Sometimes it experiences lag, but there's always room for improvement, which is why I deducted one point.
FS
Consultant at Artifield
Offers strong identity unification but needs better customization
Microsoft Entra External ID can be improved with additional features, specifically customizable flexibility and a customizable user interface for the login dialog. Currently, the login dialog has very limited customization options, which only include font styles, colors, text messages, or brand icons. Last month, Entra ID introduced some customizable features in their login dialog, but this does not apply to Microsoft Entra External ID, indicating a significant gap between the two. In theory, Entra External ID can support many external identity providers where custom login dialogs could be integrated, potentially via SSO feature coordination, although I have not yet confirmed this. Hence, enhanced customizable login options and the ability to use attribute password logins are critical features that are required for Microsoft Entra External ID to gain dominance in the authentication market.
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
10%
Marketing Services Firm
8%
Comms Service Provider
6%
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise3
Large Enterprise4
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise6
 

Questions from the Community

What do you like most about AWS IAM Identity Center?
The product is easy for beginners to learn and use.
What is your experience regarding pricing and costs for AWS IAM Identity Center?
AWS provides the lowest pricing among other service providers like Azure, Google, Oracle. It is cost-effective, and they use a pay-as-you-go model.
What needs improvement with AWS IAM Identity Center?
The tech support for AWS is time-consuming, as we have experienced this issue. However, I am not aware of many other cases.
What is your experience regarding pricing and costs for Microsoft Entra External ID?
Microsoft is flexible in the pricing for the product, so I cannot say that it is expensive, but definitely they are flexible in the price lists and their ways of doing payments.
What needs improvement with Microsoft Entra External ID?
Not really at the moment, but perhaps when we go deeper into using Microsoft Entra External ID, we may experience some things we may not prefer. However, up to now, we have not encountered anything...
What is your primary use case for Microsoft Entra External ID?
When I say identity, I mean Microsoft Entra External ID. We have been using Microsoft Entra External ID since the beginning of 2022. I am using it as a client. The purposes for using Microsoft Entr...
 

Also Known As

AWS Single Sign On, AWS SSO
Azure Active Directory External Identities
 

Overview

 

Sample Customers

Expedia, Intuit, Royal Dutch Shell, Brooks Brothers
Information Not Available
Find out what your peers are saying about AWS IAM Identity Center vs. Microsoft Entra External ID and other solutions. Updated: December 2025.
881,757 professionals have used our research since 2012.