Project Management migration
Field-level mapping, validation, and rollback between ActiveCollab and Microsoft Project. We move data and schema; workflows are rebuilt natively in Microsoft Project.
ActiveCollab
Source
Microsoft Project
Destination
Compatibility
7 of 11
objects map 1:1 between ActiveCollab and Microsoft Project.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Migrating from ActiveCollab to Microsoft Project is a shift from a collaboration-first task manager to a schedule-driven scheduling engine. ActiveCollab organizes work around Projects, Tasks, and Subtasks with integrated time tracking and invoicing; Microsoft Project organizes around Tasks, Summary Tasks (subtasks), Dependencies, and Resources with a Gantt chart as the primary interface. We resolve the structural mismatch by treating ActiveCollab Subtasks as Summary Tasks in Microsoft Project, preserving the task dependency graph as Finish-to-Start predecessors, and carrying Time Entries as custom cost and work fields on tasks. Project Templates in ActiveCollab migrate as new Projects with a template-origin naming convention. Invoicing, Workflow Automations, and the full attachment history do not migrate through the API; we deliver a written inventory of these for the customer's admin to handle separately.
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.
Why teams make this switch
Leaving
What's pushing teams away
Choosing
What's pulling them in
Object mapping
Each row shows how a ActiveCollab object lands in Microsoft Project, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
ActiveCollab
Project
Microsoft Project
Project
1:1ActiveCollab Projects map to Microsoft Project files (.mpp via Project Desktop) or Project for the Web Projects. Each ActiveCollab Project carries category, status, budget, and owner assignment metadata. We extract these as project-level fields (Name, Start Date, Finish Date, Cost, Notes) and map ActiveCollab's project status (Active, Archived, On Hold) to the Project Summary Task's custom Status field. Project Templates in ActiveCollab migrate as new Project files with a [Template] prefix in the name and all tasks preserved as a starting structure.
ActiveCollab
Task
Microsoft Project
Task
1:1ActiveCollab Tasks map directly to Microsoft Project Tasks. Name, Start Date, Due Date, Priority, Description, and completion percentage transfer to the equivalent Task fields. ActiveCollab's task Recurrence Rule is not replicated as a recurring task in Microsoft Project; instead we generate discrete task instances for each occurrence date. Dependencies originating from ActiveCollab's finish-to-start model map as Predecessor Links with FS type. Moving a task between ActiveCollab Projects disconnects it from its dependencies; we confirm the intended outcome with the customer before migration and log every dependency-break event.
ActiveCollab
Subtask
Microsoft Project
Summary Task (Task with child outline level)
1:manyActiveCollab Subtasks are hierarchical children of Tasks. Microsoft Project uses outline levels within a single Task object rather than a separate object. We reconstruct the hierarchy by promoting the parent Task to a Summary Task and indenting the Subtask rows beneath it as child tasks. The Summary Task's Start and Finish dates auto-calculate from the earliest and latest child task. We preserve Subtask assignees as task-level assignment resources.
ActiveCollab
Discussion
Microsoft Project
Note (on Task)
1:1ActiveCollab Discussion threads attached to Projects or Tasks migrate as Note text on the corresponding Microsoft Project Task. Discussion author and timestamp are stored in a custom Note field alongside the content. Microsoft Project does not have a native threaded comment object, so the flat Note representation preserves the content but not the thread structure. Project-level Discussions migrate as Notes on the Project Summary Task.
ActiveCollab
Note
Microsoft Project
Note (on Task or Project Summary Task)
1:1ActiveCollab free-form Notes attached to Projects migrate as Notes on the Project Summary Task in Microsoft Project. Note content, author, and creation date transfer. Notes are not a separate object in Microsoft Project; they are a field on tasks and the project summary task. Project-level Notes with no specific task association land on the Project Summary Task for organizational visibility.
ActiveCollab
Time Entry
Microsoft Project
Assignment Work and Cost fields
1:1ActiveCollab Time Entries (billable and non-billable, with job type and stopwatch/manual entry source) map to Microsoft Project Task Assignment Work and Cost fields. We convert the duration-unit time values to hours, apply the resource's Standard Rate to compute Cost, and set the Assignment Units to reflect the time logged relative to the task duration. Billable flag from ActiveCollab transfers to a custom Cost field or a flag field in Project. Time Entry Notes migrate as Assignment Notes.
ActiveCollab
Expense
Microsoft Project
Task Cost fields
1:1ActiveCollab Expenses (amount, category, date, receipt attachment reference) map to Microsoft Project task-level Fixed Cost and Fixed Cost Accrual fields. Expense categories become Cost Category custom fields. Receipt attachment references are preserved as a text URL field pointing to the migrated attachment location. Project-level Expenses accumulate into a Fixed Cost on the Project Summary Task.
ActiveCollab
User / Member
Microsoft Project
Resource
1:1ActiveCollab Members (paid seats) and Clients (free collaborators) map to Microsoft Project Resources. Name, email, timezone, and active/archived status transfer. ActiveCollab Member rate information (from Pro tier) maps to the Resource Standard Rate. We resolve Users by email match. Any ActiveCollab Member without a matching Microsoft identity is held in a reconciliation queue for the customer's admin to provision before the resource assignment phase.
ActiveCollab
Label
Microsoft Project
Custom Text Field (Task)
lossyActiveCollab Labels are tag strings applied to Tasks and Projects. Microsoft Project does not have a native label or tag field, so we create a Custom Text Field (Text1) on Tasks and populate it with the comma-separated label values from ActiveCollab. If labels exceed the single-text-field capacity, we create multiple Text fields (Label1, Label2) or a Flag field per label for filtering. The customer chooses the labeling strategy during scoping.
ActiveCollab
Task Dependency
Microsoft Project
Predecessor Link
lossyActiveCollab finish-to-start dependencies map to Microsoft Project Predecessor Links of type FS (Finish-to-Start). ActiveCollab's automated downstream date updates when a predecessor shifts are native behavior in Microsoft Project. Lag time, if specified in ActiveCollab, converts to the Microsoft Project Lag field (positive for lag, negative for lead). Finish-to-finish, Start-to-start, and Start-to-finish dependency types are not natively available in all ActiveCollab tiers; if any exist in the source data, we map them to the equivalent Microsoft Project predecessor type or flag them for manual review if the type is unsupported.
ActiveCollab
Invoice (Pro+ tier)
Microsoft Project
Not migrated (flagged separately)
lossyActiveCollab Invoices exist only on the Pro+ tier ($17/user/month) and include line items, tax codes, payment status, and client information. Microsoft Project has no native invoicing or billing object. We scan the workspace plan before migration to determine whether Invoice records exist. If present, we flag them as a mapping-required object and discuss the customer's preferred handling: export as a CSV, archive in a document store, or map to an external accounting tool. We do not delete invoice data; we hold it as a separate export deliverable.
| ActiveCollab | Microsoft Project | Compatibility | |
|---|---|---|---|
| Project | Project1:1 | Fully supported | |
| Task | Task1:1 | Fully supported | |
| Subtask | Summary Task (Task with child outline level)1:many | Fully supported | |
| Discussion | Note (on Task)1:1 | Fully supported | |
| Note | Note (on Task or Project Summary Task)1:1 | Fully supported | |
| Time Entry | Assignment Work and Cost fields1:1 | Fully supported | |
| Expense | Task Cost fields1:1 | Fully supported | |
| User / Member | Resource1:1 | Fully supported | |
| Label | Custom Text Field (Task)lossy | Fully supported | |
| Task Dependency | Predecessor Linklossy | Fully supported | |
| Invoice (Pro+ tier) | Not migrated (flagged separately)lossy | 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.
ActiveCollab gotchas
Task move-vs-copy disconnects from source project
APPLICATION_UNIQUE_KEY required for self-hosted migrations
UTF8MB4 encoding must be preserved through the export and import pipeline
Pro+ tier gates invoicing data — not all workspaces have it
Cloud migration requires SSH and MySQL credentials to ActiveCollab support
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
Pair-specific challenges
Migration approach
Discovery and destination SKU confirmation
We audit the source ActiveCollab workspace across tier (Plus/Pro/Pro+), active project count, task and subtask volume, time entry count, label vocabulary, dependency graph complexity, and whether Invoice records exist. We pair this with a destination confirmation: Project for the Web (web-only), Project Plan 3 ($30/user/month, web + Windows desktop), Project Plan 5 ($55/user/month, full features including resource management), or Project Desktop perpetual (standalone .mpp files). The discovery output is a written migration scope with a destination recommendation.
Attachment staging and UTF8MB4 validation
ActiveCollab files are uploaded via the /upload-files API endpoint and referenced by UUID. We download all file attachments to our staging storage, preserve the original file names, and create a mapping table of ActiveCollab file UUID to staging path. For self-hosted ActiveCollab instances, we extract the APPLICATION_UNIQUE_KEY from config/config.php before initiating the database export. We validate UTF8MB4 character encoding on all project names, task descriptions, and user names and flag any encoding issues before import.
Sandbox migration and dependency reconstruction
For Project for the Web destinations, we run a full migration into a test environment. For Project Desktop destinations, we generate a prototype .mpp file with the first three projects. The customer reconciles task hierarchy (subtask to Summary Task mapping), predecessor links (dependency graph), and time entry placement. We validate that dependency breaks from the ActiveCollab move-vs-copy disambiguation are reflected correctly in the Microsoft Project predecessor field. Any mapping corrections happen here before the production migration.
Owner-to-resource reconciliation
We extract every distinct ActiveCollab Member referenced on tasks, time entries, and expenses and match them against the destination Resource list. ActiveCollab Members with an email matching a Microsoft 365 account map directly to the corresponding resource. Members without a match go to a reconciliation queue. The customer's admin provisions any missing resources before record migration resumes. Resource Standard Rates are populated from ActiveCollab Pro tier member rates where available.
Production migration in dependency order
We run production migration in this sequence: Resources (validated), Projects (with Summary Task metadata), Tasks (with predecessor links resolved after all source projects are imported to capture cross-project dependencies), Subtasks (as Summary Task child indent), Time Entries (as Work and Cost fields on task-resource assignments), Expenses (as Fixed Cost on tasks), Discussions and Notes (as Task Notes), Labels (as Custom Text fields), then Attachments (uploaded to SharePoint for Project Plan 3/5 destinations, or linked via file path for Project Desktop). Each phase emits a row-count reconciliation report.
Cutover, validation, and non-migrated inventory handoff
We freeze ActiveCollab writes during cutover, run a delta migration of any records modified during the window, then enable Microsoft Project as the system of record. We validate the critical path is intact, that resource assignments are populated, and that time entries landed on the correct task-resource combinations. We deliver an inventory document listing every Workflow Automation, Invoice record, and Attachment that was flagged as non-migratable, with instructions for manual handling. We do not rebuild ActiveCollab automations in Microsoft Project; Power Automate is the equivalent platform but the rebuild scope is outside standard migration.
Platform deep dives
ActiveCollab
Source
Strengths
Weaknesses
Microsoft Project
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 ActiveCollab and Microsoft Project.
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
ActiveCollab: Not publicly documented.
Data volume sensitivity
ActiveCollab doesn't expose a bulk API — REST + parallelization used for high-volume runs.
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 ActiveCollab to Microsoft Project migration scoping. Not seeing yours? Book a call.
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