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Microsoft Agent 365 vs Workday Agent System of Record
Microsoft Agent 365
Microsoft 365 control plane to discover, manage, govern, and secure AI agents
Workday Agent System of Record
Workday system of record to find, add, register, configure, monitor, and manage AI agents
Short answer
Microsoft Agent 365 is a Microsoft 365 control plane for agents; Workday Agent System of Record (ASOR), in each Workday tenant, registers and manages agents.Source 1, Source 2, Source 3 Agent 365 licenses premium capabilities per user, with agent identities in Entra Agent ID; ASOR gives each agent a unique Workday identity and needs no additional specific SKU.Source 2, Source 4, Source 5, Source 6, Source 7
Where each one sits
Six layers of running AI agents at a company, and what each product’s own public sources say it covers.
These aren’t the same kind of product
Microsoft Agent 365
- Agents across organizations: Not publicly documented
Workday Agent System of Record
- Build agents: Not publicly documented
- Host and run agents: Not publicly documented
- Agents across organizations: Not publicly documented
At a glance
What each one is
Microsoft Agent 365
Microsoft Agent 365 is a Microsoft 365 service that provides a centralized control plane to discover, manage, govern, and secure AI agents.Source 1 Microsoft says it works with agents built on Microsoft platforms and with agents built or acquired from third parties.Source 1
Workday Agent System of Record
Workday Agent System of Record (ASOR) is a functional area of a Workday tenant for finding, registering, configuring, monitoring, and managing AI agents.Source 2, Source 3 Workday calls it the single source of truth for a company’s agents, whether Workday, the customer, or a partner built them.Source 23
The differences that matter
Which agents each one covers
Where agent identity and access live
Microsoft Agent 365Agent identities are Microsoft Entra service principals, managed with Conditional Access, permission grants, and consent; each needs a business sponsor.Source 4
Watching what agents do
Microsoft Agent 365Agent 365 collects activity from supported agents for Defender, Purview, and the admin center; custom and third-party agents must integrate to send it.Source 11, Source 15
Workday Agent System of RecordASOR’s audit trail report covers agent transactions; its per-agent analytics reports are only available for Workday-built agents.Source 2, Source 12
Microsoft announced an Agent 365 connector to Microsoft Sentinel, in public preview.Source 25 ASOR export to any SIEM, and Agent 365 export to non-Microsoft SIEMs, are not publicly documented.
For security teams
What a security review asks, answered from each vendor’s public documentation.
Full comparison
18 criteria in five groups. Every cell links to its source, or says no public source answers it.
| Microsoft Agent 365 | Workday Agent System of Record | |
|---|---|---|
| What it is | ||
| What it is and who it’s for | Microsoft 365 service that provides a centralized control plane to discover, manage, govern, and secure AI agents, for IT and security leaders.Source 1, Source 24 | Set up in each Workday tenant to find, register, configure, monitor, and manage AI agents built by Workday, partners, or the customer.Source 2, Source 3 |
| Maturity | Generally available since 1 May 2026 for the Commercial segment.Source 19 Registry sync and multi-tenant management are in preview.Source 29, Source 30 | Announced in February 2025; generally available since February 2026.Source 23, Source 31 Agent Gateway was announced in June 2025.Source 32 |
| Control | ||
| Agent registry and discovery | Agent registry in the Microsoft 365 admin center: one inventory of Microsoft and non-Microsoft agents, including agents without an Entra agent identity.Source 8, Source 20 | The Agent Management Hub lists Workday-built, partner-built, and self-built agents with status.Source 2 Some, such as HiredScore and Evisort agents, aren’t in ASOR.Source 2 |
| Identity and access control | Agent identities live in Microsoft Entra Agent ID, managed with Conditional Access, permission grants, and consent.Source 4 The inventory also lists agents without one.Source 20 | Each agent has a unique Workday identity, governed by security policies and groups.Source 6, Source 7 Acting for a user, an agent gets only what both may do.Source 6 |
| Ownership, policy, and revocation | A required sponsor per Entra agent identity, 30-day soft delete, and owner reassignment for shared Agent Builder and Copilot Studio agents.Source 4, Source 9 | Admins set each agent’s skills and who can use it, and activate or deactivate it.Source 2, Source 10 A deactivated agent is hidden from users and can be reactivated.Source 2 |
| Audit log and observability | Supported agents’ activity shows in Defender, Purview, and the admin center.Source 11, Source 15 Agent 365 keeps it 30 days; Purview’s agent audit logs need E7 or Agent 365.Source 1, Source 11 | An audit trail report covers agent transactions; delegated actions record the agent and the user.Source 6, Source 12 Per-agent analytics reports cover Workday-built agents only.Source 2 |
| Connection | ||
| How agents connect | The SDK works with agents on Azure, AWS, Google Cloud, or on premises.Source 15 Agent 365’s private networking is not publicly documented. | Third-party agents must route Workday API traffic through Agent Gateway, a single regional endpoint.Source 18 Outbound-only use is not publicly documented. |
| Agents across organizations | A published agent can join a customer tenant via a multitenant blueprint.Source 4 Microsoft’s separate Foundry and standard-harness Copilot Studio speak A2A.Source 33, Source 34 | ASOR manages partner-built agents, which Workday calls second-party agents; a definition can carry an ID locating each one in the partner’s system.Source 2, Source 35 |
| Protocol support | Tenant-wide tool control; your own MCP servers in preview.Source 1, Source 17 Microsoft documents A2A for its separate Foundry and standard-harness Copilot Studio, not Agent 365.Source 33, Source 34 | API registration is based on the A2A Agent Card.Source 35 Outside assistants can call the Self-Service Agent over A2A, and tool search can filter by SOAP, REST, or MCP.Source 36, Source 37 |
| Frameworks, models, and clouds supported | Microsoft and third-party agents.Source 1 SDK docs name frameworks such as LangChain, CrewAI, and the OpenAI Agents SDK, and agents keep their own host.Source 16, Source 29 | Registration records each agent’s platform, or OTHER.Source 35 Workday names Google Gemini Enterprise as an outside assistant able to call its Self-Service Agent.Source 36 |
| Operations | ||
| Deployment options and data residency | Honors the EU Data Boundary; its observability service stores customer content in the tenant’s default geography.Source 11 Self-hosting it is not publicly documented. | Set up in each Workday tenant.Source 3 Agent Gateway endpoints: US, EU, UK, Canada, Australia, Singapore, India, Japan.Source 18 Self-hosting: not publicly documented. |
| Compliance attestations | Not yet a Core Online Service; runs on SOC- and ISO-audited services.Source 11 Microsoft announced FedRAMP High authorization is pending.Source 1 | Workday says its SOC 2 report covers Workday Enterprise Products.Source 28 Its ISO 42001 certificate covers named products including Workday Platform; ASOR isn’t named.Source 28 |
| Support and SLA | No specific SLA for the Frontier preview program.Source 38 An SLA or support plan specific to the generally available service is not publicly documented. | Workday says its company-wide support is 24/5, with severity 1 cases 24/7/365, or 24/7/365 with Success Plans.Source 39 An ASOR uptime SLA is not publicly documented. |
| Time and effort to get running | Enterprise customers need Microsoft 365 E5, or E3 with Defender Suite and Purview Suite, and at least one user with an Agent 365 license.Source 5, Source 19 | Enable the ASOR functional area and set its security policies.Source 3 Registering an external agent includes finding the IDs of the Workday APIs it will use.Source 21 |
| Pricing model and public prices | Per user: lists at $15 per user per month standalone, or in Microsoft 365 E7.Source 5 Microsoft Cloud subscribers get foundational capabilities at no extra cost.Source 5 | No additional specific SKU for ASOR.Source 2 Workday-built agents consume Flex Credits by skill.Source 22 A credit’s price is not publicly documented. |
| Building | ||
| Agent building tools | Microsoft says the Agent 365 SDK isn’t an agent-building framework.Source 15 For low-code building, the docs point to Microsoft’s separate Copilot Studio.Source 40 | You provide an external agent’s definition through an API.Source 2 Workday announced the low-code Flowise Agent Builder for Workday’s separate Workday Build in 2025.Source 41 |
| Model access | Microsoft says the SDK doesn’t call or select models; the agent keeps making its own model calls.Source 15, Source 16 | Workday’s AI agents use large language models.Source 2 Which models ASOR supports or includes is not publicly documented. |
| Integrations and ecosystem | Launched with preintegrated partner agents and agents built on partner agent factories.Source 42, Source 43 Work IQ MCP tools for Mail, Calendar, Teams, and more are in preview.Source 44 | In February 2026, Workday said more than 65 partners were connecting agents to ASOR.Source 23 Workday says partner agents reached its Marketplace in June 2025.Source 32 |
Which to choose
Choose Microsoft Agent 365 if
- You use Microsoft’s separate Copilot Studio or Microsoft Foundry, which Microsoft says can provide built-in Agent 365 integration for some scenarios.Source 29, Source 45
- You want agent identities in Entra, managed with the same Conditional Access, consent, and lifecycle controls as the rest of your tenant.Source 4
- You want one inventory of Microsoft and non-Microsoft agents, whether they run on Azure, AWS, Google Cloud, or on premises.Source 15, Source 20
- You want named accountability: each Entra agent identity needs a sponsor, and admins can block or delete agents without owners.Source 4, Source 8
Choose Workday Agent System of Record if
- Your agents mostly work in Workday, and each should have its own Workday identity under your existing security policies and groups.Source 2, Source 6, Source 7
- You want an agent acting for a user limited to what both may do, with audit entries naming both.Source 6
- You want Workday-built, partner-built, and self-built agents listed with their status in one Agent Management Hub.Source 2
- You already run Workday and want agent governance in the same tenant, with no additional specific SKU to buy for ASOR.Source 2, Source 3
Questions buyers ask
Does either one build or host agents?
Microsoft says the Agent 365 SDK doesn’t build, host, deploy, orchestrate, or execute the agent; for low-code building, Microsoft points to its separate Copilot Studio.Source 16, Source 40 ASOR takes an external agent’s definition through an API; Workday announced a low-code agent builder for Workday’s separate Workday Build.Source 2, Source 41
How is each one priced?
Agent 365 lists at $15 per user per month standalone or in Microsoft 365 E7; Microsoft Cloud subscribers get foundational capabilities at no extra cost.Source 5 ASOR needs no additional specific SKU.Source 2 Workday-built agents consume Flex Credits by skill.Source 22 A credit’s price is not publicly documented.
Do they support MCP and A2A?
Agent 365 can control tool access, including Microsoft MCP servers.Source 1 Microsoft documents A2A for its separate Foundry and standard-harness Copilot Studio agents.Source 33, Source 34 ASOR bases external agent registration on the A2A Agent Card and its tool search covers MCP tools; Workday’s Self-Service Agent takes A2A calls.Source 35, Source 36, Source 37
Can either one manage agents from other companies?
Ecosystem partner agents can be deployed and managed from the admin center; multi-tenant management, in preview, governs agents across tenants you administer.Source 30, Source 42 ASOR manages partner-built agents, which Workday calls second-party agents.Source 2 Controls held by the partner company are not publicly documented for either.
How we compare
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Sources
50 public sources, each with the date we checked it. Every one opens in a new tab.
Source 1: Microsoft Agent 365 - Service Descriptions | Microsoft Learn Back:abcdefghijklm
Source 2: About Workday Agents (Workday Administrator Guide) Back:abcdefghijklmnopqrstuvwxyz2728
Source 3: Set Up Agent System of Record (Workday Administrator Guide) Back:abcdefgh
Source 4: Agent 365 identity | Microsoft Learn Back:abcdefghijklm
Source 6: Concept: Agent Security (Workday Administrator Guide) Back:abcdefghijklm
Source 7: Setup Considerations: Agent Security (Workday Administrator Guide) Back:abcdef
Source 8: Agent Registry in Microsoft 365 admin center - Microsoft 365 admin | Microsoft Learn Back:abcd
Source 9: Governance and Lifecycle actions for agents available in Microsoft 365 admin center - Microsoft 365 admin | Microsoft Learn Back:abc
Source 10: Workday Agent System of Record | Workday US Back:ab
Source 11: Data handling, data residency, and compliance in Agent 365 observability | Microsoft Learn Back:abcdefgh
Source 12: FAQ: Agent Security (Workday Administrator Guide) Back:abcd
Source 13: Agent management roles and permissions in Microsoft 365 admin center - Microsoft 365 admin | Microsoft Learn Back to text
Source 14: Workday and Microsoft to Deliver Unified AI Agent Experience for the Enterprise Back:ab
Source 15: Agent 365 SDK frequently asked questions | Microsoft Learn Back:abcdefgh
Source 16: Microsoft Agent 365 SDK overview | Microsoft Learn Back:abcde
Source 17: Bring your own (BYO) MCP server in Microsoft 365 admin center - Microsoft 365 admin | Microsoft Learn Back:ab
Source 18: Concept: Workday Agent Gateway (Workday Administrator Guide) Back:abcde
Source 19: Microsoft Agent 365 overview | Microsoft Learn Back:abcd
Source 20: Agent Registry convergence with Microsoft Agent 365 | Microsoft Learn Back:abcdefg
Source 21: Register External Agents (Workday Administrator Guide) Back:abc
Source 23: The Workday Agent System of Record Is Now Generally Available Back:abcd
Source 24: Microsoft Agent 365: The Control Plane for Agents Back:ab
Source 25: Agent 365 connector: Monitor, hunt, and investigate AI agent activity in Microsoft Sentinel | Microsoft Community Hub Back to text
Source 26: Agent Messaging Endpoint | Microsoft Learn Back to text
Source 27: Concept: External Agent ASU Considerations (Workday Administrator Guide) Back to text
Source 29: Choose an Agent 365 Integration Option | Microsoft Learn Back:abcd
Source 30: Manage agents across multiple tenants in the Microsoft 365 admin center - Microsoft 365 admin | Microsoft Learn Back:ab
Source 31: The Next Generation of Workforce Management is Here - Workday Unveils New Agent System of Record Back to text
Source 32: Workday Announces New AI Agent Partner Network and Agent Gateway Back:ab
Source 33: Connect to an agent over the Agent2Agent (A2A) protocol - Microsoft Copilot Studio | Microsoft Learn Back:abc
Source 34: Connect to an A2A agent endpoint from Foundry Agent Service - Microsoft Foundry | Microsoft Learn Back:abc
Source 35: ASOR API Documentation v1.2 (Workday/asor on GitHub) Back:abcd
Source 36: Connect External Agents to Workday Using A2A (Workday Administrator Guide) Back:abc
Source 37: Concept: ASOR Agent Resource Search API (Workday Administrator Guide) Back:ab
Source 38: Preview Agent 365 features through the Frontier program | Microsoft Learn Back to text
Source 40: Get started with Microsoft Agent 365 | Microsoft Learn Back:ab
Source 41: Workday Unveils Workday Build, Giving Developers the Tools to Build the Future of Work Back:ab
Source 42: Ecosystem partner agents available in Agent 365 | Microsoft Learn Back:ab
Source 43: Microsoft Agent 365, now generally available, expands capabilities and integrations | Microsoft Security Blog Back to text
Source 44: Connect existing agents to Microsoft Agent 365 | Microsoft Learn Back to text
Source 45: What is Microsoft Foundry? - Microsoft Foundry | Microsoft Learn Back:abc