Project Management migration
Field-level mapping, validation, and rollback between Baton and Trello. We move data and schema; workflows are rebuilt natively in Trello.
Baton
Source
Trello
Destination
Compatibility
7 of 12
objects map 1:1 between Baton and Trello.
Complexity
BStandard
Timeline
2-3 weeks
Overview
Moving from Baton to Trello is a schema restructuring that simplifies your data model significantly. Baton organizes work as Projects containing Tasks with arbitrary-depth Subtasks, Milestones with due dates, and native dependency tracking. Trello uses a flat board-list-card-checklist hierarchy with no native subtask nesting beyond checklist items. We extract Baton data through available export mechanisms, restructure the project-task-milestone hierarchy into Trello Boards and Cards, preserve assignee and due-date metadata, and flag computed date-formula fields and dependency chains as requiring manual rebuild in Trello's Butler automation or Power-Up dependency tools. Workflow configurations, client portal permission matrices, and automated reporting settings do not migrate; we deliver a written inventory for your team to rebuild.
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 Baton 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.
Baton
Project
Trello
Board
1:1Baton Projects map 1:1 to Trello Boards. Project name, description, start date, and due date migrate as Board name, description, and date filters. We create one Board per Project using the Trello REST API. Project-level custom fields (non-formula) become Custom Fields on the Board if the destination tier supports them (Premium and Enterprise). The client's internal permissions matrix for each project maps to Trello Workspace membership levels; external-facing project sharing maps to Board-level invite rules.
Baton
Milestone
Trello
List or Card with Label
lossyBaton Milestones are first-class planning objects with their own start/due dates. Trello has no native milestone concept. We map each Milestone to either a dedicated List on the destination Board (one List per Milestone) or to a Card with a milestone Label and the Milestone due date set as the Card due date. The customer chooses the strategy during scoping. Milestone ordering and milestone-task grouping are preserved via List position or Card grouping.
Baton
Task
Trello
Card
1:1Baton Tasks map directly to Trello Cards. Task name, description (rich text), assignee, due date, start date, and status migrate as Card name, description, member assignment, due date, start date (stored as a Custom Field if the Trello tier supports it), and List position. Status mapping uses the Trello List structure: we map each Baton task status value to a Trello List name or a label color. Archived or completed Baton Tasks migrate as closed Cards in Trello.
Baton
Subtask
Trello
Checklist Item
1:manyBaton Subtasks nested to arbitrary depth flatten into Trello Checklist items. Trello supports a single level of Checklist items per Card with no nesting beyond one parent Card. We preserve full subtask text and completion status as Checklist items on the parent Card. For subtasks that themselves have further subtasks in Baton, we flatten the full chain into a flat checklist ordered by nesting depth, with indentation prefixes (e.g., ' > subtask text') to indicate hierarchy visually. Subtask completion status migrates as checked/unchecked state.
Baton
Task Dependency
Trello
Custom Power-Up or Butler Rule
lossyBaton's native task dependency tracking (predecessor/successor relationships forming a critical path) has no native Trello equivalent. We flag this during scoping. Options include: Trello's Dependencies Power-Up (Premium and Enterprise tiers) which supports blocking and dependency visualization; or Butler automation rules that move Cards between Lists when a dependency Card is marked complete. We document the full dependency chain from Baton as a written mapping table with the recommended Trello rebuild approach per dependency.
Baton
Custom Field (non-formula)
Trello
Custom Field
1:1Baton custom fields of type free text, dropdown, date, and number map to Trello Custom Fields. Trello supports text, number, date, dropdown (with options), and checkbox Custom Field types. We map each Baton field type to the nearest Trello equivalent. Dropdown options migrate as Trello Custom Field dropdown options. If the destination Trello workspace is on the Free or Standard tier (which does not include Custom Fields), we create label-based or card-description-based fallbacks and document the field-value mapping for manual re-entry.
Baton
Custom Field (Date Formula)
Trello
Number Custom Field (static value)
lossyBaton's Date Formula custom field type computes the number of days between two date pickers (e.g., Project Start Date and Task Completed Date) and auto-updates when either date changes. Trello has no computed field capability. We export the current computed value as a static number field on the Card during migration. We flag this in scoping so the customer decides whether to preserve the snapshot value or re-create the logic manually in Trello's Butler automation or a third-party formula Power-Up.
Baton
Document / Attachment
Trello
Card Attachment or External Link
1:1Baton documents attached at the task or project level migrate as Trello Card attachments. We extract attachment metadata (filename, upload date, associated task) and re-upload files to Trello if the file source is accessible. If the attachment is stored in an external system (Google Drive, Dropbox, SharePoint), we migrate a link reference rather than the file blob. Actual file storage migration requires attention during scoping because Baton does not expose a bulk download API.
Baton
Client View / Portal
Trello
Workspace Board Invite or Public Board Link
lossyBaton's client-facing portal grants external users read or comment access to project data as a native feature. Trello has no equivalent client portal. We treat the client permissions matrix as a permissions inventory to be rebuilt. Each client's access maps to a Trello Board invite (if the client is a named Trello user) or a public Board share link with restricted permission settings. We deliver a written permissions matrix documenting current client-to-project access for the customer's admin to re-configure post-migration.
Baton
Assignee (Team Member)
Trello
Member
1:1Baton task assignees map to Trello Board members. We resolve assignees by email match. External collaborators and client-portal users in Baton may not have Trello accounts; we flag these as pending Board invites or convert them to Card-watchers rather than assignees. The customer's admin provisions any missing Trello workspace members before the production migration phase.
Baton
Pipeline Stage / Status Workflow
Trello
List
1:1Baton's custom task status labels and pipeline workflow stages map to Trello Lists on each Board. We extract all distinct Baton task status values and create a corresponding Trello List per status. Custom status labels (e.g., 'In Review', 'Client Approved') become List names. The migration preserves the relative ordering of statuses as List positions.
Baton
Engagement: Note
Trello
Card Description or Activity Comment
1:1Baton notes attached to tasks migrate as Card description content (if the note is the primary task description) or as Trello Card comments. We preserve note timestamps and author attribution in the comment metadata. Long notes exceeding Trello's description length limit split into multiple comments with a note delimiter header.
| Baton | Trello | Compatibility | |
|---|---|---|---|
| Project | Board1:1 | Fully supported | |
| Milestone | List or Card with Labellossy | Fully supported | |
| Task | Card1:1 | Fully supported | |
| Subtask | Checklist Item1:many | Fully supported | |
| Task Dependency | Custom Power-Up or Butler Rulelossy | Fully supported | |
| Custom Field (non-formula) | Custom Field1:1 | Fully supported | |
| Custom Field (Date Formula) | Number Custom Field (static value)lossy | Fully supported | |
| Document / Attachment | Card Attachment or External Link1:1 | Fully supported | |
| Client View / Portal | Workspace Board Invite or Public Board Linklossy | Fully supported | |
| Assignee (Team Member) | Member1:1 | Fully supported | |
| Pipeline Stage / Status Workflow | List1:1 | Fully supported | |
| Engagement: Note | Card Description or Activity Comment1:1 | 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.
Baton gotchas
No documented public API for bulk data export
Date-formula custom fields auto-update and may not replicate
Autosave lag affecting task edit throughput
Client portal permissions are a view-layer setting, not a distinct object
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
Export feasibility assessment and extraction plan
We audit the source Baton account to confirm available export mechanisms (CSV, JSON, screen-scraping fallback) and assess plan-tier export limits. We catalog all Projects, Tasks, Subtasks, Milestones, custom field definitions, assignee rosters, and attachment references. If no bulk export is available in the customer's plan tier, we design a structured extraction workflow using available application features or documented screen-based export paths. The output is a written extraction plan with record counts per object and a confirmation of which objects can be automated versus manually exported.
Trello destination tier confirmation and schema design
We confirm the destination Trello workspace tier (Free, Standard, Premium, or Enterprise) and identify which features are available for the migration scope. If custom fields, the Dependencies Power-Up, or automation tools are required, we recommend upgrading to Premium before migration begins. We design the Board structure (one Board per Baton Project), List structure (mapped from Baton status values), label taxonomy (mapped from Baton milestones), and custom field definitions matching Baton's custom field schema.
Dependency mapping and date-formula resolution
We extract every Baton task dependency pair (predecessor/successor) and build a written dependency map. We flag each dependency as mapping to Trello's Dependencies Power-Up (Premium/Enterprise), a Butler rule, or a manual rebuild task. For Baton Date Formula custom fields, we compute the current static value and store it as a Trello number Custom Field on each Card. We deliver the dependency map and date-formula index to the customer's admin before production migration begins.
Sandbox migration and reconciliation
We run a full migration into a test Trello workspace using a representative data sample (typically 10-20% of total volume). The customer reconciles Board structure, Card completeness, subtask flattening fidelity, custom field values, and milestone-to-list mapping. Any mapping corrections are documented and applied before the production migration. This step prevents correction cycles in the production workspace where team members are actively working.
Production migration in dependency order
We run the production migration in this order: Board creation (per Project), List creation (per status/milestone), Card creation with metadata (task name, description, dates, assignees), Checklist creation (subtasks), Custom Field population, and attachment re-upload (file-based) or link-migration (externally hosted). Dependencies are logged in the written dependency map for post-migration rebuild. Client portal permissions are documented separately and delivered as an inventory, not migrated directly.
Cutover, validation, and rebuild handoff
We freeze Baton writes during cutover and run a final delta migration of any records modified during the migration window. We validate Card counts, subtask completeness, and custom field population against the scoping inventory. We deliver the automation inventory (dependencies, Butler rule candidates, milestone visualization approach) and the client permissions matrix to the customer's admin. We support a one-week hypercare window. We do not rebuild automations in Trello as standard scope; that is a separate engagement or internal admin task.
Platform deep dives
Baton
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 Baton 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
Baton: Not publicly documented.
Data volume sensitivity
Baton 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.
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FAQ
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