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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
4.3
Users faced challenges with Microsoft Entra External ID but saved costs and time compared to traditional, on-premises solutions.
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.
We have achieved significant time efficiencies with AWS IAM Identity Center.
It has led to cost savings as well as time savings because I can use a single solution for all applications.
Companies can leverage it for setting up external identities without needing to develop their own solutions.
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.
 

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
4.3
Microsoft Entra External ID support varies; response times, documentation, and regional differences affect user satisfaction and solution accessibility.
AWS provides immediate solutions and assistance whenever needed, especially if issues arise that cannot be handled internally.
They are prompt, keep you updated, and provide excellent assistance.
AWS offers better assistance plans for their services.
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.
The support for business applications, infrastructure support, and Entra has been mostly positive with highly skilled technicians.
The documentation is very thorough, reducing the need for support.
 

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
7.0
Microsoft Entra External ID offers scalable security for large enterprises, with distinct policies and strong performance despite some latency issues.
AWS Identity Center successfully supports scalable deployments, allowing additional resources as the company grows.
The scalability of AWS IAM Identity Center is excellent.
It can handle both a small number of users and a bigger number of users efficiently.
This is one of EID's weak points compared to Azure AD B2C, which offers customizable authentication options, including attribute and password combinations.
End-user workloads experience increased latency in a cloud environment compared to on-premises resources.
Microsoft Entra External ID is quite scalable, and I would rate its scalability between eight and nine out of ten.
 

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
5.7
Microsoft Entra External ID is highly stable, reliable, and smooth, with minor rare issues, and positive user feedback.
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.
It offers 99.96% uptime.
Stability-wise, it is functioning well without any outages or crashes.
I'd rate the stability of the Microsoft Entra External ID as a 10.
The stability of this solution is very good.
I have not encountered any stability issues with Microsoft Entra External ID.
 

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 improved support, integration, pricing, security, UI, and customization for medium-sized businesses.
Having a lot of users on one instance is hard to configure, so I hope for more flexibility and ease in configuration.
Enhancements could include automation tools or a centralized dashboard for managing roles and policies across multiple accounts, simplifying the process.
When configuring it with third-party tools, like Active Directory, the naming convention of permission sets requires careful attention, which can be confusing.
This is particularly challenging during enterprise agreement renewals, as it's difficult for customers to review costs leading to lengthy negotiations.
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.
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.
 

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 is complex, potentially costly, but scalable, benefiting from Azure expertise and existing subscriptions.
AWS IAM Identity Center is available as a free service by default.
It is not that expensive, rated at three out of ten for costs.
Pricing for AWS IAM Identity Center is very affordable, rated at two out of ten with one being cheap.
Regarding pricing, the cost seems high for single sign-on, especially for external applications like Oracle.
Microsoft's pricing is complex and difficult to fathom due to a range of different licensing options.
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.
 

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, management, and user experience through integration, single sign-on, and adaptive authentication features.
It provides the least privilege-based access control, which limits users to only the operations they need to perform without interfering with unrelated configurations.
These features allow for excellent micro-level control over resources, ensuring specific permissions are granted.
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.
It is crucial for hybrid environments, especially for integrating existing on-site infrastructures with cloud-based Active Directory, such as in Office 365 implementations.
EID unifies workforce users with external business partners, which is a very strong feature.
Microsoft's reliability in providing a clear roadmap for the solution is very important, especially at a time when cybersecurity is a risk in every company.
 

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
7.6
Reviews Sentiment
5.8
Number of Reviews
13
Ranking in other categories
Customer Identity and Access Management (CIAM) (4th), Microsoft Security Suite (21st)
 

Mindshare comparison

As of August 2025, in the Identity and Access Management as a Service (IDaaS) (IAMaaS) category, the mindshare of AWS IAM Identity Center is 1.4%, up from 0.5% compared to the previous year. The mindshare of Microsoft Entra External ID is 2.1%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Identity and Access Management as a Service (IDaaS) (IAMaaS)
 

Featured Reviews

Khaled Saidi - PeerSpot reviewer
Manage cloud security with granular access control and enhanced authentication
Managing IAM in complex environments can be challenging, and there are several areas for improvement. First, incorporating automation tools or a centralized dashboard for managing roles and policies across multiple accounts would simplify administration, especially for large organizations. Additionally, policy debugging and validation could be more streamlined, as troubleshooting misconfigurations can be time-consuming and prone to errors. A more robust error messaging system or a dedicated debugging tool would be beneficial. Another area for improvement is temporary access credentials. AWS documentation should offer more detailed guidance on edge cases and exceptions, along with clearer examples of how to handle various scenarios. Lastly, enhanced session-level policies that are more context-sensitive and based on specific conditions (such as IP address, device, or time) would greatly increase flexibility and allow for more granular control over user sessions.
Corrado Vigano - PeerSpot reviewer
Solution integrates well with existing systems while being easy to use
The fact that it is quite integrated into the entire Microsoft environment makes it quite easy to use. Furthermore, Microsoft's reliability in providing a clear roadmap for the solution is very important, especially at a time when cybersecurity is a risk in every company. The solution is easy to reuse and not difficult to find expertise for in the market because it is widespread. It is gaining attention even from partners and from the market on the offering side. This serves as a good starting point for customers who can develop internal competence on the solution. Additionally, the presence of reliable partners who know the solution and can provide internal knowledge is the best aspect for them.
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Computer Software Company
11%
Manufacturing Company
10%
Performing Arts
7%
Computer Software Company
17%
Financial Services Firm
10%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
Concerning the pricing or setup costs for Microsoft Entra External ID, based on my experience with Entra and 365 in general, it shouldn't require a whole education on their software. That's been a ...
What needs improvement with Microsoft Entra External ID?
I haven't utilized the adaptive authentication feature. We haven't used the customization capability for user journeys within the Microsoft Entra External ID. I don't have experience trying to crea...
What is your primary use case for Microsoft Entra External ID?
I'm more familiar with the Microsoft Entra External ID, the Active Directory external identities, because we have a hybrid environment. For the parts that I handle, the on-premise part is easier fo...
 

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: July 2025.
865,295 professionals have used our research since 2012.