Project 2021 Professional — perpetual desktop scheduler, out of support since 13 October 2026: features, Project Server integration and upgrade options.
Project 2021 · licensing decision diagram, not a product screenshot
Separate perpetual desktop editions from subscription plans. Confirm included apps, operating system, commercial-use rights and shared-computer deployment rights; not every Microsoft 365 plan includes desktop apps or Teams.
Record the exact edition, version, quantity, agreement and support date. Obtain written confirmation of delivery, refund and support terms; a perpetual licence is not a lifetime support guarantee.
On this page
Editions covered
4
Edition matrix with feature differences and the right audience.
In-depth sections
4
Channels, activation, audit, modern management & more.
FAQs answered
6
Common questions buyers and IT admins ask before purchase.
Words of reference
0.4k
Edition and deployment guidance; verify current rights against official sources.
Edition matrix
Pick the right edition
Each edition targets a specific scale and feature set. Match the workload, not the price tag.
Edition 1
Project Standard 2021
Single-user desktop scheduler. No PPM connectivity.
Edition 2
Project Professional 2021
Adds Project Server connectivity, team planner, enterprise resource pool.
Edition 3
Project Server 2019
On-prem PPM platform — paired with Project Professional 2021 for enterprise scheduling.
Edition 4
Planner and Project Plan 1 / 3 / 5
Per-user cloud planning subscriptions (Project Online retired September 2026). Plan 3 and 5 include the desktop client.
Side-by-side
Edition comparison
Compare the stated edition details. An omitted capability is not evidence that a feature is unavailable; verify the exact release in Microsoft's documentation.
Capability
Project Standard 2021
Project Professional 2021
Project Server 2019
Planner and Project Plan 1 / 3 / 5
Edition and licensing notes
Single-user desktop scheduler. No PPM connectivity.
Adds Project Server connectivity, team planner, enterprise resource pool.
On-prem PPM platform — paired with Project Professional 2021 for enterprise scheduling.
Per-user cloud planning subscriptions (Project Online retired September 2026). Plan 3 and 5 include the desktop client.
Deep dive
Project 2021 — what to actually know
Project 2021 is the perpetual desktop version of Microsoft Project that preceded Project 2024. It shipped alongside Office 2021 in October 2021 and reached end of support on 13 October 2026, so it no longer receives security updates. Organisations that need a perpetual Gantt-centric scheduler should move to Project 2024; cloud planning now runs in Microsoft Planner with Planner and Project Plan 3 or Plan 5.
01
Standard vs Professional
Project Standard 2021 is the single-user desktop scheduler — full Gantt charts, resource sheets, baselines, critical path, earned value, reports, and the Office ribbon UX. Project Professional 2021 adds team collaboration features that depend on connecting to Project Server (Project Online was retired on 30 September 2026): enterprise resource pool, team planner, synchronisation with SharePoint task lists, and the ability to publish projects to a central Project Web App for portfolio reporting. Professional is the right SKU when there is a central PMO or PPM platform behind the scheduler; Standard is the right SKU for individual schedulers, consultants, or teams that share files but do not need centralised portfolio reporting.
02
Licensing channels
Project 2021 was sold through Retail (single PC per licence) and Volume Licensing (per-device or per-user under the chosen agreement); it is not an OEM product for end users. There is no consumer subscription equivalent in the Microsoft 365 family — Project as a subscription is sold under the separate Planner Plan 1 and Planner and Project Plan 3 / 5 SKUs, which are per-user cloud subscriptions and are licensed independently of Microsoft 365 E3/E5. Cheap "OEM" Project keys offered outside official channels are essentially always leaked or misused volume keys; treat them as the same red flag as standalone OEM Windows keys.
03
Integration with Project Server and SharePoint
Project Professional 2021 connects to Project Server (on-prem; Project Online was retired on 30 September 2026) for enterprise scheduling: published projects appear in Project Web App, the timeline rolls up into portfolio reports, resources draw from a central pool. It also synchronises with SharePoint task lists for lightweight scenarios. Organisations with Planner and Project Plan 3 or Plan 5 already receive the current desktop Project client, so buying Professional 2021 separately makes no sense now that its support has ended.
04
Support timeline and migration
Project 2021 reached end of support on 13 October 2026; perpetual Project 2021 has no extended support period. No further security updates ship, and the product is now a compliance issue for anything that touches regulated project data. Project 2024 (perpetual) or Project Plan 3 / Plan 5 (subscription with desktop client) are the migration targets.
By channel
Where to buy this product
Confirm that the exact SKU is available in the proposed channel and region. A channel name does not establish entitlement or guarantee a lower price.
Evidence to request
Exact product, edition, version and licence quantity.
Order, invoice and applicable agreement or subscription record.
Ownership in your organisation's account, where applicable.
Written reassignment, renewal and support conditions.
OEM is supplied only pre-installed by hardware manufacturers, never sold as a standalone licence.
Retail / FPPIndividuals & small teams
Boxed or ESD keys, transferable, registered to a Microsoft account.
Monthly / annual seats, managed through partner or admin center.
OEM is not a buying channel for end users. OEM keys are supplied pre-installed by hardware manufacturers and are not sold standalone — choose Retail, Volume or CSP instead.
Support timeline
Lifecycle phases to plan against
Compare perpetual desktop editions with exact Microsoft 365 plans. Included desktop apps, Exchange, Teams and other services vary by plan and region; confirm each required service rather than assuming all subscriptions include it.
Phase 1
Exact product
Identify
Record the release, edition and servicing channel of Project 2021; family names alone do not establish support dates.
Phase 2
Official lifecycle
Verify
Look up the exact product in Microsoft's lifecycle directory. Fixed and Modern Lifecycle policies differ; not every release has extended support.
Phase 3
Deployment
Plan
Confirm supported operating systems, application dependencies and upgrade rights before deployment.
Phase 4
End of support
Migrate
A perpetual licence can remain valid after support ends, but it does not guarantee security updates. Check any ESU programme separately.
Purchase preparation
What to include in a Project 2021 quote request
Users or devices
Number of users and PCs or Macs; any shared computers.
Edition
Exact Project or Visio edition and desktop or online requirements.
Purchase model
Perpetual edition or exact subscription plan.
Use rights
Commercial use, deployment method and renewal requirements.
These are planning inputs, not a licence calculation. Confirm the final quantity and use rights against the exact version and agreement.
Compare like-for-like quotations
Match product, edition, version, quantity and perpetual or subscription terms.
Confirm total cost, renewal conditions and the evidence of ownership supplied.
Obtain written delivery, refund and support conditions before payment.
The small set of decisions that determine whether you overpay, fail an audit, or land in the right place.
DO
Match the channel to the user — Current Channel for power users, Monthly Enterprise for general staff, Semi-Annual Enterprise for change-averse business units.
DON'T
Run perpetual Office 2016 against a modern Exchange Online tenant — connectivity works but several features (modern auth, sensitivity labels) are unsupported.
DO
License the user, not the device — a single M365 seat covers up to 5 PCs/Macs, 5 tablets and 5 phones for the same person.
DON'T
Buy a Retail box of Office for a shared family computer when each person has their own Microsoft account — Microsoft 365 Family is cheaper and adds OneDrive.
DO
Use Group Policy / Cloud Policy to lock down macros, add-ins and sensitive-data egress.
DON'T
Distribute Office through a generic ISO without the Office Customisation Tool — you end up with sideloaded language packs and orphan installs.
Typical deployments
How buyers actually use Project 2021
Illustrative planning scenarios, not customer case studies. Check the exact product rights and deployment requirements.
Scenario 1
Office-bound knowledge worker
Microsoft 365 Business Standard or E3. Desktop apps, OneDrive, SharePoint, Teams. Outlook against Exchange Online. The default office stack for almost everyone in 2026.
Scenario 2
Field / frontline worker
Compare the exact F1 and F3 service descriptions and frontline eligibility. F1 and F3 have different app and mailbox rights; do not assume both include editable Office apps or a usable Exchange mailbox.
Scenario 3
Compliance-heavy enterprise
M365 E5 for Purview, Defender, Entra ID P2, and the advanced eDiscovery / DLP stack. The price jump is real, but so is the audit surface area it covers.
Cost optimisation
Where the savings actually live
Compare entitlement, deployment and renewal costs; savings depend on your workload and written quotation.
💰
Microsoft 365 Business Premium is the sweet spot
For ≤300 seats, Business Premium bundles Office, Intune, Defender for Business and Entra ID P1 — replacing two or three separate SKUs at a lower total cost.
📊
Perpetual still wins for air-gapped sites
Manufacturing floors, classified networks and lab PCs without internet are the rare cases where a perpetual Office release legitimately beats a cloud subscription.
🎯
Mac and Windows are the same licence
M365 covers both — do not double-buy because of platform.
Counterfeit & risk
Red flags when buying second-hand
These warning signs require further verification; activation alone cannot establish licence ownership.
⚠ 01
Standalone OEM key sold below market
OEM keys are distributed only pre-installed on hardware and stay bound to that device for life. A separately sold OEM key is not an eligible standalone purchase; request documented rights through an appropriate channel.
⚠ 02
Lifetime key with no invoice or Microsoft 365 admin center volume licensing record
Request applicable order and agreement records, such as Microsoft Store purchases, CSP subscription records or volume licensing details in the Microsoft 365 admin center. Activation alone is not proof of entitlement.
⚠ 03
Key works once, then 'not genuine' after the next cumulative update
Activation failures can have several causes, including key eligibility, activation counts, connectivity and hardware changes. Check the error through official Microsoft guidance; it does not by itself prove counterfeiting.
⚠ 04
Seller refuses to put the entitlement in your tenant
For tenant-based subscriptions, confirm your organisation controls the tenant and can read its subscription records. Retail and on-premises entitlements use different records; not every licence is assigned through a tenant.
Acronyms
Licensing terms used on this page
Quick definitions — the full glossary lives at /en/glossary if you need to dig deeper.
CSP
Cloud Solution Provider — Microsoft's primary indirect channel for subscriptions and cloud services.
Microsoft 365 admin center volume licensing
Volume licensing administration — agreements, keys and downloads are now managed in the Microsoft 365 admin center.
MAK
Multiple Activation Key — a Volume Licensing key with a finite activation count, used for isolated machines.
KMS
Key Management Service — an on-premises activation host that activates clients on a 180-day re-check cycle.
EA
Enterprise Agreement — Microsoft's largest commitment-based volume contract, typically a 3-year term with annual true-ups.
SA
Software Assurance — the upgrade-and-benefits add-on to Volume Licensing; required for new version rights and several mobility scenarios.
Standard for individual schedulers and ad hoc collaboration. Professional for organisations with Project Server, or a central PPM workflow.
Does Project 2021 connect to Project for the Web?+
No. Project for the Web has been folded into Microsoft Planner and Project Online was retired on 30 September 2026; the desktop Project 2021 client connects to on-premises Project Server only.
Is Project bundled in Microsoft 365 E3/E5?+
No. Project is licensed separately via Planner Plan 1, Planner and Project Plan 3 or 5, or as a perpetual desktop SKU.
When did Project 2021 updates stop?+
On 13 October 2026 — the same date as Office 2021. It no longer receives security updates.
Where can I legitimately buy a license?+
Through Microsoft's Retail channel, an authorised Cloud Solution Provider (CSP), or a Volume Licensing partner (MPSA, Enterprise Agreement, Open Value, Server & Cloud Enrollment). OEM keys are distributed only pre-installed by hardware manufacturers and stay bound to that device for life — they are not sold to end users as standalone products. Anyone offering a 'cheap OEM key' as a standalone download is, by definition, operating outside Microsoft's distribution terms.
What gets checked in a Microsoft licensing audit?+
Auditors map every installed copy to a proof of purchase (VLSC record, CSP invoice, sealed Retail FPP), verify edition alignment (features used must match the licensed edition), and confirm CAL counts cover the maximum number of authenticated users or devices during the audit window. Small variances usually resolve with a true-up; large gaps escalate to Software Asset Management engagements and back-billing at list price.