Project Management migration

Migrate from Deltek WorkBook to Trello

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

Deltek WorkBook logo

Deltek WorkBook

Source

Trello

Destination

Trello logo

Compatibility

43%

6 of 14

objects map 1:1 between Deltek WorkBook and Trello.

Complexity

BStandard

Timeline

3-5 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Deltek WorkBook is a project-based ERP for agencies integrating project management, CRM, resource planning, and full financial accounting. Trello is a card-based visual work management tool with Boards, Lists, and Cards organised around kanban and custom fields. The architectural gap between an agency ERP and a task-card tool is the central challenge in this migration: Projects map to Boards, Tasks map to Cards, and Pipeline Stages map to Lists, but Invoices, Purchase Orders, Expenses, and the Chart of Accounts have no Trello equivalent and must be exported as JSON snapshots for manual re-entry. We sequence the migration to preserve task hierarchy, assignee assignments, and custom field fidelity, while flagging Board Workspace structure decisions upfront so teams can reorganise before migration begins.

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

Deltek WorkBook logo

Deltek WorkBook

What's pushing teams away

  • Non-intuitive interface and steep learning curve create adoption friction, especially for non-technical team members unfamiliar with dense project-based ERP systems.
  • Limited custom reporting, particularly in the finance module, frustrates finance leads who need tailored financial statements and profitability views.
  • Regular users experience information overload due to the breadth of the platform — multiple modules, dashboards, and configuration options without guided workflows.
  • Occasional Danish words appearing in the English interface signal localisation inconsistencies that erode confidence in multi-language deployments.
  • Dashboards and the mobile expense app have been described as not production-ready by reviewers, leading teams to use workarounds for reporting and field expenses.

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 Deltek WorkBook objects map to Trello

Each row shows how a Deltek WorkBook 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.

Deltek WorkBook

Project

maps to

Trello

Board

1:1
Fully supported

WorkBook Projects map to Trello Boards. Each WorkBook Project (with its name, status, dates, budget, and description) becomes a Board. We use the Project name as the Board title and the WorkBook project ID stored in a Board custom field as a cross-reference for reconciliation. If the customer uses Project templates in WorkBook, we document the template structure as a Board copy guide for their admin to replicate in Trello.

Deltek WorkBook

Task

maps to

Trello

Card

1:1
Fully supported

WorkBook Tasks map to Trello Cards within the appropriate Board. Task name becomes Card title, description maps to Card description, due date maps to the due date field, and assignee resolves to a Board Member. Parent-child Task relationships in WorkBook have no native equivalent in Trello — we represent sub-tasks as Cards with a checklist named 'Sub-tasks' on the parent Card, preserving the hierarchy as a checklist structure rather than a native parent-child record relationship.

Deltek WorkBook

Pipeline Stage

maps to

Trello

List

1:1
Fully supported

WorkBook Pipeline Stages become Trello Lists within a Board. Stage name, order, and win/loss probability percentage migrate to List name, Card position, and a custom field (Probability %) on Cards in that List. Pipeline stages used for CRM opportunities map to a dedicated CRM Board; project task stages map to a separate PM Board. The customer defines the Board-List structure during scoping so we can route the correct stage data to the correct Board.

Deltek WorkBook

CRM Contact

maps to

Trello

Card Member / Custom Field

1:1
Fully supported

WorkBook CRM Contacts migrate as Trello Board Members invited to Cards where they are a stakeholder, and as a Contact custom field on Cards storing the contact name, email, and phone. Contact-Company associations are preserved by linking Cards to the Board representing the associated Company, or via a Company custom field on each Card. Multi-address and multi-phone contact records are stored in Card description for reference.

Deltek WorkBook

CRM Company

maps to

Trello

Card / Custom Field / Label

lossy
Fully supported

WorkBook Companies map to Trello Cards on a dedicated Company Board, with each Company record as a Card containing company name, industry, address, and size in Card description and custom fields. Alternatively, the Company name becomes a Card Label (with a consistent colour mapping) on Cards linked to that company, and a Company custom field holds the full company name reference. The customer chooses the strategy during scoping.

Deltek WorkBook

Time Entry

maps to

Trello

Card Attachment (JSON)

lossy
Fully supported

WorkBook Time Entries (linked to Projects and Tasks with hourly rates, billing status, and date) have no native Trello equivalent. We export time entries as a structured JSON file per Card (referencing the parent WorkBook Task Card) and attach the JSON file to the corresponding Trello Card as a file attachment. Billable vs non-billable flags and approved/pending status are included in the JSON. Customers needing visible time tracking in Trello use a time-tracking Power-Up post-migration.

Deltek WorkBook

Expense

maps to

Trello

Card Attachment (JSON)

lossy
Fully supported

WorkBook Expense records (with mileage, material, and personal expense categories, receipt attachments, project linkage, and reimbursement status) export as a JSON snapshot attached to the relevant Trello Card. Receipt binary files from WorkBook's file storage are re-attached to the corresponding Card as Card attachments. Trello has no native expense management; customers needing expense tracking post-migration configure a finance Power-Up or use a separate expense tool.

Deltek WorkBook

Worker / Resource

maps to

Trello

Board Member

1:1
Fully supported

WorkBook Workers (team members with skills, availability calendars, and utilisation data) map to Trello Board Members. We resolve Workers by email address to Trello member accounts. Skill tags, capacity settings, and booking assignments from WorkBook export as a JSON resource profile attached to a Board-level 'Resources' Card or as custom fields on individual Cards. Active vs archived worker status is preserved by Board membership scope.

Deltek WorkBook

Custom Fields / Dimensions

maps to

Trello

Custom Fields

lossy
Mapping required

WorkBook's 21 built-in Dimensions and up to 10 custom Dimensions per organisation require explicit type-mapping to Trello native custom field types. Text dimensions map to Trello text fields; numeric dimensions map to number fields; date dimensions map to Trello date fields; picklist-based dimensions map to dropdown or label fields. A dimension-mapping matrix is presented to the customer during scoping. Free-tier Trello workspaces have limited native custom field support; Standard tier or above is recommended when migration scope includes more than three custom field types.

Deltek WorkBook

Attachment / Document

maps to

Trello

Card Attachment

1:1
Fully supported

Files saved to WorkBook Projects, Tasks, or Companies extract via WorkBook's file storage and re-attach to the corresponding Trello Card. We preserve file name, binary content, and original upload date. Large file volumes may require chunking or a file-size pre-check against Trello's per-Board attachment limits. Documents that are not directly task-linked (e.g. org-level policy documents) are attached to a Board-level 'Documents' Card as a reference archive.

Deltek WorkBook

Invoice / Accounts Receivable

maps to

Trello

Not migratable (document separately)

lossy
Fully supported

WorkBook Invoices (generated from time, expenses, and fixed fees against a Project) have no Trello equivalent. Trello has no native invoice management, billing, or AR tracking. We export invoice records as a structured JSON snapshot including line items, payment status, and age, and deliver this as a written invoice inventory document for the customer's finance team to re-enter manually or migrate to a dedicated accounting tool post-migration.

Deltek WorkBook

Purchase Order

maps to

Trello

Not migratable (document separately)

lossy
Fully supported

WorkBook Purchase Orders (tied to Projects with vendor commitments, line items, amounts, and status) have no Trello equivalent. We export open and historical PO records as a JSON snapshot and deliver it as a written PO inventory document. Closed POs migrate as read-only historical records in the document. The customer re-enters active PO data manually or uses a separate procurement tool.

Deltek WorkBook

Chart of Accounts

maps to

Trello

Not migratable (document separately)

lossy
Mapping required

WorkBook's Chart of Accounts with 21 built-in Dimensions and up to 10 custom Dimensions cannot map to Trello, which has no financial accounting schema. We export the full Chart of Accounts and dimension definitions as a structured JSON settings bundle. This bundle is delivered to the customer's finance team for reference if they adopt a dedicated accounting tool alongside Trello. The bundle includes any variables that reference deprecated or migrated IDs, flagged for manual review.

Deltek WorkBook

System and Company Variables

maps to

Trello

Not migratable (document separately)

lossy
Mapping required

WorkBook System Variables and Company Variables (numbering sequences, workflow flags, and integration settings) export as a structured JSON settings bundle separate from the primary data migration. We flag any variables that reference IDs no longer present post-migration. The bundle is handed to the customer for manual import review; Trello has no native equivalent for system configuration variables.

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.

Deltek WorkBook logo

Deltek WorkBook gotchas

High

WorkBook REST API is versioned with deprecation cycles

Medium

Data Export requires Finance & Administration access

Medium

System Variables and Company Variables are not migrated automatically

Low

21 built-in Dimensions plus 10 custom ones require explicit mapping

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

  • Financial objects have no Trello equivalent

    WorkBook's financial module — Invoices, Accounts Receivable, Expenses, Purchase Orders, and the Chart of Accounts — has no direct Trello equivalent. Trello is a task and work management tool with no native billing, expense, or accounting capability. We export these records as structured JSON snapshots and deliver a written inventory for the customer's finance team to re-enter manually or migrate to a separate accounting platform. Teams expecting invoice history to appear in Trello will be disappointed; this gap must be communicated before migration begins.

  • Archived Trello cards are not included in standard exports

    Trelly's native export does not include archived cards. Communities including the Atlassian forum and Vikunja migration tool reports confirm that archived cards must be manually restored to active boards before export or they are silently omitted. In a reverse migration context, this means archived WorkBook project cards or historical Trello boards created during a transition period require pre-export restoration. We check for archived cards during the audit phase and flag any boards with archived card volume to the customer before extraction begins.

  • WorkBook custom Dimensions require explicit field-type mapping

    WorkBook's dimensional accounting model assigns up to 31 dimension tags per transaction, and custom dimension names and data types vary by organisation. Trello's custom fields support text, number, date, dropdown, checkbox, and label types. A WorkBook text dimension maps cleanly; a WorkBook multi-select dimension maps to a Trello dropdown only if the picklist values are finite. We present a dimension-mapping matrix during scoping and confirm field-type choices before migration, so that data is not truncated or rejected on import.

  • Parent-child task hierarchy maps to checklists, not native sub-tasks

    WorkBook supports parent-child task relationships with sub-tasks as distinct records. Trello Cards do not have a native sub-task record concept — the standard workaround is a Checklist on the Card. We represent WorkBook sub-tasks as Checklist items on the parent Card. If the customer requires true sub-task records with separate assignees, due dates, and statuses, Trello Premium's Subtasks feature is needed, or a third-party Power-Up like Planyway or Better Subtasks must be deployed post-migration.

  • Trello free tier caps Boards at three per workspace

    Trello's free tier limits each workspace to three Boards. WorkBook agencies typically have multiple active Projects that map to multiple Boards. Migration scoping must confirm whether the customer's Trello workspace is on the free, Standard, or Premium tier, because exceeding the Board limit during migration requires an upgrade or Board archival strategy before migration begins. We flag the tier requirement during discovery.

Migration approach

Six steps for a successful Deltek WorkBook to Trello data migration

  1. Discovery and Board structure design

    We audit the source WorkBook portal across Projects, Tasks, Pipeline Stages, Contacts, Companies, custom Dimensions, and attachment volume. We pair this with a Trello workspace audit to confirm the current tier (free, Standard, or Premium) and existing Board count. The discovery output includes a Board-structure proposal: one Board per WorkBook Project or a consolidated Board-per-team approach, with Lists mapped to WorkBook Pipeline Stages. We also identify which financial objects (Invoices, POs, Expenses) require JSON snapshot export versus Trello-native import and confirm whether any archived Cards exist that require pre-export restoration.

  2. Schema design and custom field mapping

    We design the destination Trello schema: Board names, List names per Board, custom field names and types per Board, and member invite list per Board. The dimension-mapping matrix from WorkBook's 31-dimension model to Trello custom field types is confirmed with the customer and documented. If the customer requires sub-tasks as native sub-task records (rather than checklist items), we confirm whether Trello Premium is being adopted and configure the Subtasks feature accordingly.

  3. Sandbox migration and reconciliation

    We run a full migration into a test Trello workspace using production-like data volume. The customer's project lead reconciles record counts (Boards in, Lists per Board in, Cards in, custom fields populated, members invited) and spot-checks 25-50 random Cards against the WorkBook source. Owner and member assignments are validated. Any mapping corrections — wrong List, missing custom field data, incorrect member resolution — are identified here before production migration begins.

  4. Worker and member reconciliation

    We extract every distinct WorkBook Worker referenced on Tasks and Resources and resolve by email against the destination Trello workspace member list. Any Workers without matching Trello accounts go to a reconciliation queue for the customer's admin to provision. Migration cannot complete member assignment without resolved accounts because Trello Cards require valid member references.

  5. Production migration in dependency order

    We run production migration in record-dependency order: Board creation (Projects as Boards), List creation (Pipeline Stages as Lists), Card migration (Tasks as Cards with checklist-based sub-tasks), custom field population per Card, Board member invitations resolved from Worker reconciliation, and attachment re-upload from WorkBook file storage. Financial objects (Invoices, POs, Expenses, Chart of Accounts) are exported as structured JSON snapshots and attached to the relevant Cards as file attachments. Each phase emits a row-count reconciliation report before the next phase begins.

  6. Cutover, validation, and automation rebuild handoff

    We freeze WorkBook writes during cutover and run a final delta migration of any Cards modified during the migration window. We enable Trello as the system of record and deliver the financial JSON snapshot inventory and the dimension-mapping matrix to the customer's finance and admin teams. We do not migrate WorkBook workflows or automations as Trello Butler rules or Power-Up automations inside migration scope; that is documented separately as a Butler rebuild guide for the customer's admin. We support a one-week hypercare window for reconciliation issues raised by the project team.

Platform deep dives

Context on both ends of the pair

Deltek WorkBook logo

Deltek WorkBook

Source

Strengths

  • Integrated project management, resource planning, and full financial accounting in a single platform.
  • 300+ built-in reports and configurable dashboards for agency performance visibility.
  • Multi-company, multi-currency, and inter-company transaction support for complex agency structures.
  • Mobile apps for iOS and Android with Kanban task view and time/expense entry on mobile.
  • Resource scheduling with skills matching, availability, and utilisation tracking.

Weaknesses

  • Non-intuitive interface with steep learning curve and information overload for new users.
  • Limited custom reporting, especially in the finance module — finance leads frequently use external BI tools.
  • Dashboards and mobile expense app have been described as not production-ready by users.
  • API has versioned endpoints with deprecation cycles that require integration maintenance.
  • No public pricing — quotes are custom per organisation and require a sales call.
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 Deltek WorkBook 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

    Deltek WorkBook: Not publicly documented by Deltek for WorkBook.

  • Data volume sensitivity

    A

    Deltek WorkBook exposes a bulk API — large-volume migrations stream efficiently.

Estimator

Estimate your Deltek WorkBook 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 Deltek WorkBook to Trello data migrations

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

Can't find your answer?

Walk through your Deltek WorkBook to Trello migration with a real engineer — 30 minutes, free, written quote within 24 hours.

Book a free 30 minute consultation

Migrations land between three and five weeks for straightforward Project-as-Board and Task-as-Card migrations under 10,000 records with no archived card recovery needed. Migrations with pipeline stage logic, archived card pre-restoration, high-volume custom field types, or Trello Premium tier configuration (for sub-tasks) move to six to ten weeks because of Board-structure design, member reconciliation scope, and dimension-mapping matrix review.

Adjacent paths

Related migrations to explore

Ready when you are

Move from Deltek WorkBook.
Land in Trello, intact.

Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.

Accuracy guarantee Rollback included Quote in 1 business day