Project Management migration

Migrate from Microsoft Project to Trello

Field-level mapping, validation, and rollback between Microsoft Project and Trello. We move data and schema; workflows are rebuilt natively in Trello.

Microsoft Project logo

Microsoft Project

Source

Trello

Destination

Trello logo

Compatibility

92%

11 of 12

objects map 1:1 between Microsoft Project and Trello.

Complexity

BStandard

Timeline

24–48 hours

Rollback included Accuracy guarantee Field-level validation

Try the reverse

Trello
Microsoft Project

Overview

What this migration involves

Microsoft Project stores work as a task-level data model: Projects contain tasks with start/finish dates, duration, dependencies, resource assignments, and custom fields. Teams typically use it for waterfall scheduling, critical path analysis, and resource leveling across large portfolios. Trello inverts this model entirely — work lives in Kanban boards where cards move through lists, assignees replace resource pools, and timeline views (Premium feature) substitute for Gantt charts. FlitStack AI reads Microsoft Project via its file format and any connected Project Online/PWA instance, then maps each task to a Trello card, each summary task to a parent card with child cards for sub-tasks, each resource to a Trello member, and each dependency to Trello's native card-linking or a Power-Up dependency graph. Custom fields migrate into Trello's Custom Fields Power-Up. Gantt-specific constructs (critical path, baseline, leveling, timephased data) cannot map to native Trello constructs and are surfaced as a rebuild specification for Trello Premium Timeline views and any Butler rules your team needs to replicate the scheduling logic.

Field-level fidelity

Every standard and custom field arrives verified.

Schema-aware mapping

AI proposes the map; you confirm before any record moves.

Relationships preserved

Parent–child, lookups, and ownership stay linked.

Full activity history

Calls, emails, meetings — with original timestamps.

Attachments & notes

Documents, uploads, and inline notes move with the record.

Why teams make this switch

Two sides of the same decision

Leaving

Microsoft Project logo

Microsoft Project

What's pushing teams away

  • Ease of use ranks 42nd of 49 tools in its category; project managers without a scheduling background report high friction during onboarding and day-to-day operation.
  • Collaboration features trail modern PM platforms — there is no client portal, no proofing workflow, and no built-in social-style commenting that team members expect from contemporary tools.
  • Cost per seat is premium; small and mid-market teams report difficulty justifying the expense against lighter-weight alternatives with sufficient scheduling depth.
  • Project for the web's retirement and consolidation into Microsoft Planner creates uncertainty — organizations are re-evaluating whether to rebuild on Planner, migrate to a third-party platform, or remain on Project Plan 3 or Plan 5.
  • Steep learning curve and complex configuration make it difficult for non-project-manager stakeholders to self-serve; PMOs spend significant time producing reports rather than empowering teams to access them.

Choosing

Trello logo

Trello

What's pulling them in

  • Free plan supports unlimited users and 10 boards, giving small teams full access to core Kanban functionality before any paid commitment is required.
  • The drag-and-drop board/card/Label interface requires no training, which reduces adoption friction and onboarding time across distributed teams.
  • Atlassian ecosystem integration with Jira, Confluence, and Bitbucket provides native cross-tool workflows for teams already using Atlassian tools.
  • Butler automation on paid tiers enables rule-based triggers without third-party integrations, covering basic workflow automation needs.
  • Simple visual task management with due dates, checklists, and member assignments keeps individual contributors and small teams organized without complexity.

Object mapping

How Microsoft Project objects map to Trello

Each row shows how a Microsoft Project object lands in Trello, including any object-level transformations, lookup resolution, or schema-design dependencies.

Typical mapping — final map is confirmed during the sample migration step.

Microsoft Project

Project

maps to

Trello

Board

1:1
Fully supported

Each Microsoft Project file (.mpp) or PWA project becomes one Trello board. The board name uses the project name. We preserve the project description as the board description and the project start date as a custom field on the board. Enterprise projects from PWA become Enterprise workspaces in Trello if the org has Trello Enterprise.

Microsoft Project

Task (non-summary)

maps to

Trello

Card

1:1
Fully supported

Standard tasks map 1:1 to Trello cards. Task name becomes card title. Task notes/description becomes card description. Start date, finish date, and duration migrate as due dates and custom fields. % complete does not map to Trello natively — we preserve it as a Progress__c custom field (number). Assignee resolves by email match to Trello members.

Microsoft Project

Summary Task

maps to

Trello

Parent Card + Child Cards

1:many
Fully supported

Summary tasks with child sub-tasks split into a parent card representing the summary, with sub-tasks created as child cards linked under it. Trello does not have a native parent-child relationship between cards — we use a Power-Up like Treejack or card links to preserve the WBS hierarchy. Outline level is stored as a custom field on each card.

Microsoft Project

Resource

maps to

Trello

Board Member

1:1
Fully supported

Microsoft Project resource names map to Trello board members by email match. Resource max units, cost rate tables, and accrual type (prorated, front-loaded, back-loaded) have no Trello equivalent — we preserve them in a Resource_Mapping__c custom field on each card where the resource is assigned. Unmatched resources are flagged before migration.

Microsoft Project

Resource Assignment

maps to

Trello

Card Assignee + Custom Field

1:1
Fully supported

Each resource assigned to a task creates a Trello card assignee for that task. If a task has multiple resource assignments (e.g., a developer at 50% and a designer at 25%), we capture the unit percentage in Resource_Units__c on the card. Trello natively shows all assignees on a card regardless of allocation percentage.

Microsoft Project

Task Dependency (Finish-to-Start)

maps to

Trello

Card Link (Dependency Power-Up)

1:1
Fully supported

Microsoft Project FS dependencies (the most common type) map to Trello card links via a dependency Power-Up. Each predecessor-successor pair becomes a blocked-by or blocking link on the card. Trello's built-in card linking is directional — we preserve the FS semantics in the link type.

Microsoft Project

Task Dependency (SS/FF/SF)

maps to

Trello

Card Link (non-FS preserved as note)

1:1
Fully supported

Trello has no native representation for Start-to-Start, Finish-to-Finish, or Start-to-Finish dependencies. We preserve these dependency types and their lag/lead time as a Custom_Dependencies__c text field on each card listing the non-FS relationships. Your team rebuilds these as Butler rules or a dependency Power-Up after migration.

Microsoft Project

Custom Field (text, number, date)

maps to

Trello

Custom Field (Power-Up)

1:1
Fully supported

Microsoft Project enterprise custom fields migrate into Trello's Custom Fields Power-Up. Text fields map to Trello text, numbers to number, dates to date, and pick-lists to dropdown. Currency and cost fields migrate as number fields — Trello has no native currency formatting. Flag/checkbox fields map to Trello checkbox custom fields.

Microsoft Project

Attachment

maps to

Trello

Card Attachment

1:1
Fully supported

File attachments on Microsoft Project tasks re-upload to Trello card attachments. Trello Enterprise allows 250 MB per file; Standard/Premium allow 10 MB per file on the free/standard tiers. We flag files exceeding Trello's size limit so your team can store them externally and link to them instead.

Microsoft Project

Task Notes / Description

maps to

Trello

Card Description

1:1
Fully supported

Task notes in Microsoft Project, including any rich text formatting, become card descriptions in Trello. HTML formatting in task notes is stripped to plain text with basic markdown preserved where possible. Hyperlinks in task notes re-embedded as markdown links. If the original notes contain tables or embedded images, FlitStack AI converts them to plain-text tables or external image links to maintain readability within Trello's description field.

Microsoft Project

Baseline

maps to

Trello

Custom Field (no native equivalent)

1:1
Fully supported

Microsoft Project baselines (baseline start, baseline finish, baseline cost) have no Trello equivalent. We export baseline data as a separate CSV alongside the migration and deliver a baseline-restore specification as a Trello Power-Up configuration guide for teams that need to track schedule variance in Trello Premium.

Microsoft Project

Calendar / Working Time

maps to

Trello

Custom Field + Board Settings

1:1
Fully supported

Microsoft Project task calendars and non-default working time (e.g., night-shift calendars) cannot be represented in Trello. We preserve calendar assignments as Calendar_Name__c on each affected card and note that Trello uses a 24/7 default calendar — teams recreate working-time constraints in Butler if needed.

Gotchas + challenges

What specifically takes care here

Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.

Microsoft Project logo

Microsoft Project gotchas

High

Project for the web is being retired and merged into Microsoft Planner

Medium

Planner-tier portfolio features are incomplete despite Plan 5 labeling

Medium

Web app constraint controls are weaker than the Windows desktop client

High

Project requires a separate license not bundled with standard Microsoft 365

Medium

Project Online API is edition-gated and inconsistently documented

Trello logo

Trello gotchas

High

Billing model uses maximum seat quantity at term midpoint

Medium

Custom Field data historically stored in pluginData

Medium

API rate limits are token-gated and can block bulk migration

Medium

Guest-to-paid seat conversion triggers on multi-board membership

Low

Automation command runs are capped per plan and overage triggers upgrade pressure

Pair-specific challenges

  • Trello has no native dependency types beyond card links

    Microsoft Project supports four dependency types (FS, SS, FF, SF) with lag and lead time. Trello's native card-linking is directional but does not encode dependency type. Start-to-Start, Finish-to-Finish, and Start-to-Finish dependencies, plus any lag/lead values, cannot be represented in Trello natively. FlitStack AI preserves these as a text custom field listing each non-FS dependency with its type and lag days. Teams must rebuild these as Butler rules or install a dependency Power-Up (Card Peek, Dependency Links, or similar) to restore automated scheduling logic. Failure to do this means your successor tasks will not auto-update when predecessors complete.

  • Trello's Custom Fields Power-Up has type restrictions that block some MS Project field migrations

    MS Project custom fields can be of type Cost (with currency formatting), Duration (with calendar units), Flag, Number, Text, Date, and Enterprise lookup. Trello's Custom Fields Power-Up supports text, number, date, dropdown, checkbox, and URL — but not Cost or Duration types. Cost fields are migrated as plain number fields; Duration fields are migrated as number fields representing days. Teams that rely on MS Project currency formatting for budget tracking need to add a Trello Power-Up like Custo or use external reporting for financial visibility. This limitation affects every task that has a Cost-type enterprise custom field.

  • Resource allocation percentages do not map to Trello assignee model

    MS Project assigns resources at a specific unit percentage per task (e.g., a developer assigned at 50% for two weeks). Trello card assignees do not store unit percentage — a member is either assigned or not. FlitStack AI stores the unit percentage in a Resource_Units__c custom field on each card, but Trello will display all assignees equally regardless of their allocation. Teams using resource leveling or capacity planning in MS Project lose that capability in Trello without a dedicated resource management Power-Up and manual process.

  • Gantt chart view and critical path tracking have no Trello equivalent

    MS Project's Gantt chart visualizes task bars, dependencies, critical path highlighting, and baseline comparison in a single view. Trello's Timeline view (Premium) displays cards on a horizontal timeline but does not calculate critical path, show baseline vs. actual bars, or support WBS hierarchy visualization. Schedule variance analysis requires either Trello Premium with the Timeline view plus a Power-Up, or external BI reporting from an exported CSV. We deliver the baseline data as a separate CSV and a rebuild spec for Trello Timeline.

  • Summary task WBS hierarchy requires a Power-Up to render correctly in Trello

    MS Project summary tasks organize sub-tasks under a numbered outline hierarchy. Trello has no native parent-card / child-card nesting. FlitStack AI creates parent cards and child cards as separate cards and links them using a Power-Up such as Treejack or Card Hierarchy. If your team does not install a compatible Power-Up before migration, the WBS hierarchy appears flat and out of order in Trello, making it difficult to understand the project structure at a glance.

Migration approach

Six steps for a successful Microsoft Project to Trello data migration

  1. Inventory MS Project files and connect to PWA

    We read every .mpp file and any connected Project Online / PWA instance to capture all projects, tasks, resources, custom fields, and dependencies. We generate a pre-migration inventory report listing each project, its task count, hierarchy depth, resource pool size, custom field list, and any baseline or timephased data. This inventory drives the scope estimate and identifies projects that may need manual review before migration begins.

  2. Map task hierarchy to Trello board structure

    For each MS Project file, we create a corresponding Trello board. Summary tasks become parent cards; sub-tasks become child cards linked under them. Task outline level is stored as Outline_Level__c on each card. We pre-create all Trello lists (e.g., To Do, In Progress, Review, Done) on each board. Any MS Project custom fields are pre-defined in the Custom Fields Power-Up on each board before migration so the field schema exists before card data arrives.

  3. Resolve resources to Trello workspace members

    MS Project resource names are matched by email address against Trello workspace members. Unmatched resources are flagged with their name and email so your admin can either invite them to Trello or map them to an existing member before migration. Resource cost-rate tables and unit percentages are preserved in custom fields on each card assignment for later reference. We also record each resource's default calendar and material flag as extra custom fields, and generate a CSV of unmatched resources for admin resolution before the final import.

  4. Run a sample migration with field-level verification

    A representative slice — typically one project with 50–200 tasks covering multiple hierarchy levels, custom fields, and dependency chains — migrates first. We produce a field-level diff comparing the source MS Project task data against the destination Trello cards so you can verify that due dates, assignees, custom field values, and card hierarchy are correct before the full run commits. Dependencies and WBS levels are spot-checked on this sample.

  5. Execute full migration with delta pickup window

    Full migration runs against all MS Project files and PWA data. A delta-pickup window (24–48 hours after initial migration) captures any tasks modified in MS Project during the cutover. Attachments are re-uploaded to Trello cards. Non-FS dependencies and resource cost data are preserved in custom fields. FlitStack AI delivers an audit log of all operations and a separate CSV export of baseline data and resource cost-rate tables for teams rebuilding those in Trello Premium.

Platform deep dives

Context on both ends of the pair

Microsoft Project logo

Microsoft Project

Source

Strengths

  • Deep critical-path scheduling with baseline comparison and cross-project dependency tracking unmatched by lighter PM tools.
  • Native Azure AD authentication, Teams integration, and Power BI reporting sit on infrastructure enterprises already license and manage.
  • Enterprise governance controls including demand intake workflows, resource request approval, and portfolio-level capacity analysis.
  • Supports both Waterfall and Agile methodologies within the same project, accommodating hybrid delivery teams.
  • Scalable from Project Plan 1 for small teams to Project Server on-premises for regulated industries with strict data-sovereignty requirements.

Weaknesses

  • Ease-of-use scores trail the category average by a wide margin; onboarding friction frustrates new users consistently across G2 and Capterra reviews.
  • Pricing ranks 42nd of 49 tools in its category — the total cost of ownership including IT administration and training is rarely recovered for small or mid-market teams.
  • No built-in client portal, external stakeholder sharing, or proofing workflow, limiting use cases to internal PMO environments only.
  • The web interface (Project for the web / Planner Premium) has materially weaker constraint controls and resource auto-leveling than the Windows desktop client.
  • Project for the web is being consolidated into Microsoft Planner, creating uncertainty about which product tier will host project portfolio data long-term.
Trello logo

Trello

Destination

Strengths

  • Generous free tier with unlimited users and 10 boards, the lowest barrier to entry among major project management tools.
  • Intuitive drag-and-drop Kanban interface requires no training or onboarding documentation.
  • Deep Atlassian integration with Jira, Confluence, and Bitbucket for teams already in the ecosystem.
  • Built-in Butler automation covers rule-based triggers without requiring third-party integrations.
  • REST API with comprehensive documentation enables programmatic access to all core objects.

Weaknesses

  • Reporting and analytics are absent, with no built-in velocity tracking, burndown charts, or historical performance metrics.
  • The flat board/list/card data model scales poorly for complex projects requiring hierarchical task structures.
  • Customization is limited compared to platforms like Asana, monday.com, or Jira that offer richer field types and workflow configuration.
  • Advanced views (Timeline, Dashboard) require Premium and are not available on Standard, inflating total cost for teams needing visibility features.
  • Guest user billing rules are confusing and prone to accidental seat overages when guests join multiple boards.

Complexity grading

How hard is this migration?

Standard Project Management migration. 2 of 8 objects need a mapping; the rest are 1:1.

B

Overall complexity

Standard migration

Derived from compatibility, mapping clarity, API constraints, and data volume across Microsoft Project and Trello.

  • Object compatibility

    B

    2 of 8 objects need a mapping; the rest are 1:1.

  • Field mapping clarity

    C

    Field mapping is derived from defaults — final spec confirmed during the sample migration.

  • Timeline complexity

    B

    8-object category — typical timelines run 2–7 days end-to-end.

  • API constraints

    B

    Microsoft Project: Inherits SharePoint Online's resource quotas and bandwidth throttling. The OData reporting service caps returned rows at 500 by default; standard SharePoint Online throttling responses (429/503 with Retry-After) apply..

  • Data volume sensitivity

    A

    Microsoft Project exposes a bulk API — large-volume migrations stream efficiently.

Estimator

Estimate your Microsoft Project to Trello migration cost

Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.

Step 1

What are you migrating?

Pick a category, then your source and destination platforms.

Category

FAQ

Frequently asked questions about Microsoft Project to Trello data migrations

Answers to the questions buyers ask most during Microsoft Project to Trello migration scoping. Not seeing yours? Book a call.

Can't find your answer?

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Most Microsoft Project to Trello migrations complete within 24–48 hours of clock time for setups under 5,000 tasks across 10 projects. Larger portfolios with 50,000+ tasks or deep WBS hierarchies (5+ nesting levels) extend to 5–10 days. The longest planning steps are custom field schema setup in Trello and dependency mapping. We recommend scheduling the delta-pickup window for the first business day after the initial migration run to capture any final MS Project updates.

Adjacent paths

Related migrations to explore

Ready when you are

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