Project Management migration
Field-level mapping, validation, and rollback between Cerebro and Trello. We move data and schema; workflows are rebuilt natively in Trello.
Cerebro
Source
Trello
Destination
Compatibility
7 of 12
objects map 1:1 between Cerebro and Trello.
Complexity
BStandard
Timeline
2-6 weeks
Overview
Moving from Cerebro to Trello is a structural migration: Cerebro's unlimited task nesting depth has no native Trello equivalent, so deep hierarchies must flatten into checklist items within cards or break out as linked child cards using Trello's Cards Power-Up. Cerebro has no documented public API, which constrains how completely we can extract task data and forces reliance on whatever export function Cerebro exposes at scoping. We download media attachments from Cerebro's distributed servers individually and re-upload them to Trello cards because they are not included in standard exports. Permission groups in Cerebro do not map directly to Trello's workspace roles; we flag every group without a direct equivalent for manual post-migration review. We deliver a written inventory of Cerebro workflows, Gantt dependencies, and project templates for your admin to rebuild in Trello or via Butler.
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 Cerebro 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.
Cerebro
Project
Trello
Workspace + Board
1:manyCerebro Projects map to Trello Workspaces (the organizational container) with one Board per Project. Project name becomes the Board name, project description becomes the Board description, and project status (active/archived) is noted for manual triage. Tags applied at the project level become Workspace-level labels. We create the Workspace first, then provision one Board per Cerebro Project within it, preserving project-level metadata as Board attributes.
Cerebro
Task
Trello
Card
1:1Top-level Cerebro Tasks migrate directly to Trello Cards. Task name becomes the card title, description migrates as card description, due date migrates to the card due date field, and assignee migrates to card member. Status in Cerebro maps to card position within the target List (To Do, In Progress, Done) based on the customer's status-to-list mapping defined at scoping.
Cerebro
Subtask
Trello
Checklist Item or Linked Card
1:manyCerebro Subtasks nested one level below a Task migrate as Checklist Items within the parent Trello Card. Subtasks nested two-plus levels below a Task are flagged as structural exceptions: we convert them to linked child cards using Trello's Cards Power-Up if available on the destination plan, or document them as manual card-creation tasks for the customer's admin. Deep hierarchies exceeding Trello's flat model are documented in the structural exception report delivered at cutover.
Cerebro
Tag
Trello
Label
1:1Cerebro Tags migrate to Trello Labels with a one-to-one name mapping. Cerebro's tag taxonomy is team-defined and not globally enforced, so we deduplicate tag name collisions that occur across different Cerebro object types and normalize label names to Trello's 25-character limit. The customer chooses whether to apply labels at the card level or filter by label during migration validation.
Cerebro
Task Dependency
Trello
Dependency Reference (documented)
1:1Cerebro exposes Gantt chart dependency edges between tasks. Trello has no native dependency model, and no dependency Power-Up is included in Standard or below. We extract all dependency edges, document them in a dependency matrix (predecessor, successor, dependency type), and deliver this as a written artifact for the customer's admin to rebuild manually or via a selected Power-Up. Dependencies do not fail the migration but are not recreated automatically.
Cerebro
Attachment
Trello
Card Attachment
1:1Cerebro stores media files on its own distributed server infrastructure. These files are not included in standard web exports and must be extracted by URL from the task export, downloaded individually, and re-uploaded to the corresponding Trello Card as a native attachment. Large files are chunked for re-upload, and failures are logged per asset for retry. Audiovisual commentaries are treated as linked media assets; thumbnail previews do not carry over. File size limits and re-upload failures must be handled explicitly per asset.
Cerebro
Comment
Trello
Card Comment
1:1Cerebro Comments migrate to Trello Card Comments as plain text. Author attribution is preserved by resolving the comment author's Cerebro user to a Trello workspace member via the User mapping table. Inline media references in Cerebro comments are converted to download links pointing at the re-uploaded attachment at migration time. UI artifact strings from Cerebro's built-in translator feature are stripped during comment normalization.
Cerebro
Team Calendar
Trello
Calendar Power-Up (documented)
lossyCerebro team and individual calendars aggregate task assignments and deadlines. Trello Calendar Power-Up (included in Standard and above) displays cards with due dates on a calendar view, but Cerebro calendar entries with all-day versus partial-day semantics and team availability overlays have no direct equivalent. We map task due dates to card due dates, document the calendar structure as a separate artifact, and recommend the customer configure the Calendar Power-Up post-migration to match their team availability view.
Cerebro
User
Trello
Workspace Member
1:1Cerebro Users migrate to Trello workspace members matched by email address. We extract every Cerebro user referenced on any migrating record and cross-reference against the Trello destination workspace. Any Cerebro user without a matching Trello member account goes to a reconciliation queue for the customer's admin to provision before record migration begins. Active versus inactive status is preserved in a custom field for audit.
Cerebro
Permission Group
Trello
Workspace Role or Board Permission
lossyCerebro uses a permission-group access model where users belong to named groups with specific access rights per project. Trello uses workspace roles (Viewer, Member, Admin) and board-level permissions (Private, Workspace, Public). We extract all group memberships, map them to the closest matching Trello role, and flag any Cerebro group with no direct equivalent (custom permission sets, per-project granular rights) as requiring manual post-migration permission review and rebuild in Trello Workspace settings.
Cerebro
Gantt Chart
Trello
Timeline Reference (documented)
lossyGantt views in Cerebro are generated from task dates and dependency edges. Trello has no native Gantt chart; the Calendar Power-Up provides a partial timeline view but lacks dependency arrows and resource loading views. We extract all timeline data and dependency edges into a written Gantt reference document delivered at cutover. The customer's admin uses this to configure a third-party Power-Up or accept the Calendar Power-Up as the replacement timeline view.
Cerebro
Project Template
Trello
Board Template (documented)
1:1Cerebro project templates enable consistent workflow cloning across recurring engagements. Trello does not import project templates directly; Board Templates are created manually or from existing boards. We document the full Cerebro template structure (board layout, default labels, default lists, default cards, and checklist templates) and deliver it as a reference so the customer's admin can recreate it as a Trello Board Template for future projects. Template migration is not automated.
| Cerebro | Trello | Compatibility | |
|---|---|---|---|
| Project | Workspace + Board1:many | Fully supported | |
| Task | Card1:1 | Fully supported | |
| Subtask | Checklist Item or Linked Card1:many | Fully supported | |
| Tag | Label1:1 | Fully supported | |
| Task Dependency | Dependency Reference (documented)1:1 | Fully supported | |
| Attachment | Card Attachment1:1 | Fully supported | |
| Comment | Card Comment1:1 | Fully supported | |
| Team Calendar | Calendar Power-Up (documented)lossy | Fully supported | |
| User | Workspace Member1:1 | Fully supported | |
| Permission Group | Workspace Role or Board Permissionlossy | Fully supported | |
| Gantt Chart | Timeline Reference (documented)lossy | Fully supported | |
| Project Template | Board Template (documented)1:1 | 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.
Cerebro gotchas
No documented public API for automated export
Media attachments stored on Cerebro's servers require separate transfer
Permission groups do not map cleanly to role-based systems
Localization strings in exported comments may include UI artifacts
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
Discovery and scoping
We request a full account export from Cerebro and audit the project structure, nesting depth distribution, attachment count, permission group inventory, and archived card inventory. We identify all structural exceptions where Cerebro's unlimited nesting exceeds Trello's flat card model and flag them before the migration scope is confirmed. This phase produces a written migration scope document with record counts, object mapping, and a list of structural exceptions requiring manual resolution.
Trello workspace and board design
We design the destination Trello workspace: one Workspace per Cerebro deployment or team, one Board per Cerebro Project. We configure Custom Fields to match Cerebro's typed properties, establish Label taxonomy derived from Cerebro tag names, and design the initial List structure (for example, To Do, In Progress, Done) mapped from Cerebro task status values. We document the Board Template structure for any Cerebro project templates that the customer wishes to recreate post-migration.
Sandbox migration and reconciliation
We run a sandbox migration using production-like data volume to validate the mapping. We reconcile card counts, spot-check attachment downloads and re-uploads, confirm label mapping, validate checklist conversion at depth, and verify that the permission group mapping resolves cleanly. The customer reviews the sandbox output and signs off before production migration begins. Any mapping corrections are made during this phase.
Owner reconciliation and workspace member provisioning
We extract every distinct Cerebro user referenced on any migrating record and match by email against the Trello destination workspace. Any Cerebro user without a matching Trello workspace member is added to a reconciliation queue. The customer's admin provisions missing members (active or inactive) before production migration. This step cannot be skipped because Trello requires a valid workspace member reference for card assignees.
Production migration in dependency order
We run production migration in this order: Workspace and Boards (from Cerebro Projects), Cards with Checklist Items (from Cerebro Tasks and Subtasks), Card Custom Fields (from Cerebro custom properties), Labels (from Cerebro Tags), Attachments (downloaded from Cerebro URLs and re-uploaded to Trello Cards), Comments (from Cerebro comments with author resolved via user mapping), and Permission Groups (mapped to workspace roles with exceptions documented). We run row-count reconciliation after each phase.
Cutover, validation, and automation handoff
We freeze Cerebro writes during the cutover window, run a delta migration of any records created or modified during the migration, enable Trello as the system of record, and deliver the automation and dependency handoff package. The package includes a Cerebro Workflow inventory (for Butler rebuild), a Gantt dependency matrix (for Power-Up or manual rebuild), and a Project Template reference (for Board Template creation). We support a one-week hypercare window for immediate post-cutover issues. We do not rebuild Cerebro workflows or Gantt automations inside the migration scope; those are separate admin tasks.
Platform deep dives
Cerebro
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 Cerebro 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
Cerebro: Not publicly documented.
Data volume sensitivity
Cerebro 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
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FAQ
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