Project Management migration
Field-level mapping, validation, and rollback between Microsoft Project and Trello. We move data and schema; workflows are rebuilt natively in Trello.
Microsoft Project
Source
Trello
Destination
Compatibility
11 of 12
objects map 1:1 between Microsoft Project and Trello.
Complexity
BStandard
Timeline
24–48 hours
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Overview
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.
Every standard and custom field arrives verified.
AI proposes the map; you confirm before any record moves.
Parent–child, lookups, and ownership stay linked.
Calls, emails, meetings — with original timestamps.
Documents, uploads, and inline notes move with the record.
Source platform
Microsoft Project platform overview
Scorecard, SWOT, gotchas, and pricing for Microsoft Project.
Destination platform
Trello platform overview
Scorecard, SWOT, gotchas, and pricing for Trello.
Data migration guide
The complete Trello migration guide
Data model, import mechanisms, field mapping strategy, pitfalls, and cutover — by the engineers running it.
Source platform guide
Microsoft Project migration guide
Understand the data you're exporting from Microsoft Project before mapping it.
Destination checklist
Trello migration checklist
Pre- and post-cutover tasks for moving onto Trello.
Source checklist
Microsoft Project migration checklist
Exit checklist for unwinding your Microsoft Project setup cleanly.
Why teams make this switch
Leaving
What's pushing teams away
Choosing
What's pulling them in
Object mapping
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
Trello
Board
1:1Each 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)
Trello
Card
1:1Standard 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
Trello
Parent Card + Child Cards
1:manySummary 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
Trello
Board Member
1:1Microsoft 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
Trello
Card Assignee + Custom Field
1:1Each 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)
Trello
Card Link (Dependency Power-Up)
1:1Microsoft 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)
Trello
Card Link (non-FS preserved as note)
1:1Trello 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)
Trello
Custom Field (Power-Up)
1:1Microsoft 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
Trello
Card Attachment
1:1File 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
Trello
Card Description
1:1Task 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
Trello
Custom Field (no native equivalent)
1:1Microsoft 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
Trello
Custom Field + Board Settings
1:1Microsoft 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.
| Microsoft Project | Trello | Compatibility | |
|---|---|---|---|
| Project | Board1:1 | Fully supported | |
| Task (non-summary) | Card1:1 | Fully supported | |
| Summary Task | Parent Card + Child Cards1:many | Fully supported | |
| Resource | Board Member1:1 | Fully supported | |
| Resource Assignment | Card Assignee + Custom Field1:1 | Fully supported | |
| Task Dependency (Finish-to-Start) | Card Link (Dependency Power-Up)1:1 | Fully supported | |
| Task Dependency (SS/FF/SF) | Card Link (non-FS preserved as note)1:1 | Fully supported | |
| Custom Field (text, number, date) | Custom Field (Power-Up)1:1 | Fully supported | |
| Attachment | Card Attachment1:1 | Fully supported | |
| Task Notes / Description | Card Description1:1 | Fully supported | |
| Baseline | Custom Field (no native equivalent)1:1 | Fully supported | |
| Calendar / Working Time | Custom Field + Board Settings1:1 | Fully supported |
Gotchas + challenges
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 gotchas
Project for the web is being retired and merged into Microsoft Planner
Planner-tier portfolio features are incomplete despite Plan 5 labeling
Web app constraint controls are weaker than the Windows desktop client
Project requires a separate license not bundled with standard Microsoft 365
Project Online API is edition-gated and inconsistently documented
Trello gotchas
Billing model uses maximum seat quantity at term midpoint
Custom Field data historically stored in pluginData
API rate limits are token-gated and can block bulk migration
Guest-to-paid seat conversion triggers on multi-board membership
Automation command runs are capped per plan and overage triggers upgrade pressure
Pair-specific challenges
Migration approach
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.
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.
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.
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.
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
Microsoft Project
Source
Strengths
Weaknesses
Trello
Destination
Strengths
Weaknesses
Complexity grading
Standard Project Management migration. 2 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Microsoft Project and Trello.
Object compatibility
2 of 8 objects need a mapping; the rest are 1:1.
Field mapping clarity
Field mapping is derived from defaults — final spec confirmed during the sample migration.
Timeline complexity
8-object category — typical timelines run 2–7 days end-to-end.
API constraints
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
Microsoft Project exposes a bulk API — large-volume migrations stream efficiently.
Estimator
Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.
Step 1
Pick a category, then your source and destination platforms.
Category
FAQ
Answers to the questions buyers ask most during Microsoft Project to Trello migration scoping. Not seeing yours? Book a call.
Walk through your Microsoft Project to Trello migration with a real engineer — 30 minutes, free, written quote within 24 hours.
Book a free 30 minute consultationAdjacent paths
Other ways to leave Microsoft Project
Other ways to arrive at Trello
Same-Project Management migrations
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