HRMS migration
Field-level mapping, validation, and rollback between Roubler and Bullhorn ATS & CRM. We move data and schema; workflows are rebuilt natively in Bullhorn ATS & CRM.
Roubler
Source
Bullhorn ATS & CRM
Destination
Compatibility
6 of 12
objects map 1:1 between Roubler and Bullhorn ATS & CRM.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Moving from Roubler to Bullhorn is a domain-shift migration. Roubler is a workforce management platform spanning recruiting, onboarding, rostering, time tracking, and payroll for internal teams. Bullhorn is an ATS and CRM built for staffing agencies managing external candidate pipelines and client relationships. The migration does not map directly because the object models serve different operational roles. We resolve this by treating Roubler Employees as Bullhorn Candidates (for placed or contingent workers), Roubler Positions as Bullhorn JobOrder definitions, Roubler Rosters as Placement assignment records, and Roubler Leave balances and Timesheets as custom fields on the Candidate record. Roubler's MYOB acquisition raises data residency and support continuity questions that we scope during discovery. Bullhorn's API does not include payroll or HRMS functionality, so payroll run summaries migrate as reporting records and any active payroll runs are flagged as write-locked before extraction. We do not migrate Roubler Workflows or integrations as code; Bullhorn's workflow model is fundamentally different and requires a separate rebuild by the customer's admin team.
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 Roubler object lands in Bullhorn ATS & CRM, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
Roubler
Employee
Bullhorn ATS & CRM
Candidate
1:1Roubler Employee records map to Bullhorn Candidate. Core fields (firstName, lastName, email, phone, employmentType, startDate, position assignment) migrate directly. We flag any Employee without a valid email address because Bullhorn Candidate requires an email for the candidate record to be actionable. EmploymentType (full-time, part-time, casual) migrates to a custom Candidate field for segmentation. Employees who are internal admin staff rather than candidates to be placed are mapped to ClientContact instead; the customer specifies this split during scoping.
Roubler
Employee
Bullhorn ATS & CRM
ClientContact
1:1Roubler Employees who are internal staffing agency staff (recruiters, account managers, back-office users) rather than candidates to be placed migrate to Bullhorn ClientContact. We extract these records by matching against the customer's specified user list or by identifying records with no position assignment in Roubler. ClientContact requires a firstName, lastName, email, and a linked ClientCorporation record, which we create as a placeholder corporation for the staffing agency's own organization.
Roubler
Position
Bullhorn ATS & CRM
JobOrder
1:1Roubler Position records (role definitions with FTE value, task list, and employment model) map to Bullhorn JobOrder. The Position title becomes JobOrder title, FTE value maps to a custom field on JobOrder, and position tasks become JobOrder description bullets. Roubler's demand-based rostering data linked to POS integrations migrates as a custom field on JobOrder capturing the expected hours-per-week allocation.
Roubler
Roster / Shift
Bullhorn ATS & CRM
Placement
1:1Roubler Roster and Shift records (time, location, assigned Employee) map to Bullhorn Placement when the assignment represents a placed candidate. The Shift start and end time becomes Placement startDate and endDate. Location migrates to Placement location field. Demand-based shift auto-generation data from POS integrations becomes a custom field on Placement. Open shifts and provisional assignments are flagged as draft Placement records for customer review before final import.
Roubler
Leave Balance
Bullhorn ATS & CRM
Candidate custom field
lossyRoubler Leave entitlements, accrual history, and current balances map to custom fields on the Bullhorn Candidate record. Each leave type (annual, sick, long service) becomes a separate decimal field capturing the current balance. Accrual rates and effective dates migrate as metadata fields. Bullhorn does not have a native leave management object, so this data lives as flat custom fields on the Candidate. Leave rules tied to award interpretation cannot be preserved as active rules; we document the award name and entitlement structure in a separate compliance handoff sheet for the customer's HR admin.
Roubler
Timesheet
Bullhorn ATS & CRM
Placement custom field or Candidate custom field
lossyRoubler Timesheet records link to rostered shifts and include clock-in/out events and hours worked. We aggregate timesheet data by pay period and migrate the totals as custom fields on the related Placement record (for placed workers) or as a historical timesheet summary attached to the Candidate record. Bullhorn Middle Office handles time capture for staffing firms post-migration; we document the migration of historical timesheet totals so the back-office team can reconcile against any payroll runs that continue in a separate payroll system.
Roubler
Payroll Run
Bullhorn ATS & CRM
Report record (non-standard)
lossyRoubler Payroll Run summaries (gross/net amounts, pay period, run date) are exportable but have no Bullhorn equivalent because Bullhorn is an ATS/CRM and does not include payroll processing. We extract payroll run summaries as a structured CSV report and deliver it alongside the migration, flagging any runs that are still open or locked in Roubler at the time of extraction. If the customer uses Bullhorn Middle Office, we document the payroll run data mapping for integration into the back-office payroll module post-migration.
Roubler
Onboarding Record
Bullhorn ATS & CRM
Candidate custom field or Task
lossyRoubler Onboarding records include tasks, document collection status, and employee setup steps. We migrate the current state of each onboarding workflow as custom fields on the Bullhorn Candidate (document collection status flags) and as Bullhorn Task records for pending onboarding steps that need completion post-migration. In-progress onboarding tasks do not transfer meaningfully as active workflows; we deliver a written onboarding task checklist for the customer's admin to complete in Bullhorn.
Roubler
Custom Field (Employee or Position)
Bullhorn ATS & CRM
Candidate custom field or JobOrder custom field
lossyRoubler custom fields on Employee and Position objects migrate as custom fields on the corresponding Bullhorn object (Candidate or JobOrder). We export custom field names and values as flat key-value pairs and create matching custom fields in Bullhorn during the pre-migration schema setup phase. Field type mapping requires manual alignment: Roubler text fields map to Bullhorn text fields, date fields to date fields, picklist fields to picklist fields with the same option values.
Roubler
Integration configuration
Bullhorn ATS & CRM
No migration (rebuild required)
lossyRoubler integrations with Xero, MYOB, QuickBooks Online, Workable, and POS systems store webhook URLs, credentials, and mapping rules that are not exportable via the API. Integration configuration must be rebuilt in Bullhorn or in a third-party integration layer post-migration. We deliver a written inventory of each active Roubler integration with its endpoint URLs, data flow direction, and object mapping so the customer's admin can reconfigure in Bullhorn or through Bullhorn's App marketplace.
Roubler
Document attachment
Bullhorn ATS & CRM
No migration (manual export required)
1:1Employee documents (contracts, certifications, IDs) uploaded to Roubler are not retrievable through the public API. We cannot migrate binary file assets automatically. We alert the customer during discovery so they can export documents manually via Roubler's UI or through a screen-capture process before the migration window closes. We provide a document naming convention that maps each file to the corresponding Candidate record in Bullhorn for manual re-upload post-migration.
Roubler
Owner (Employee with system access)
Bullhorn ATS & CRM
User
1:1Roubler Employees who have system access map to Bullhorn User records by email match. Any Roubler Employee without a matching Bullhorn User goes to a reconciliation queue for the customer's Bullhorn admin to provision before record import resumes. Bullhorn ATS Growth edition does not include API access; we confirm the destination Bullhorn edition during scoping and flag if API-disabled tiers are in use.
| Roubler | Bullhorn ATS & CRM | Compatibility | |
|---|---|---|---|
| Employee | Candidate1:1 | Fully supported | |
| Employee | ClientContact1:1 | Fully supported | |
| Position | JobOrder1:1 | Fully supported | |
| Roster / Shift | Placement1:1 | Fully supported | |
| Leave Balance | Candidate custom fieldlossy | Fully supported | |
| Timesheet | Placement custom field or Candidate custom fieldlossy | Fully supported | |
| Payroll Run | Report record (non-standard)lossy | Fully supported | |
| Onboarding Record | Candidate custom field or Tasklossy | Fully supported | |
| Custom Field (Employee or Position) | Candidate custom field or JobOrder custom fieldlossy | Fully supported | |
| Integration configuration | No migration (rebuild required)lossy | Fully supported | |
| Document attachment | No migration (manual export required)1:1 | Fully supported | |
| Owner (Employee with system access) | User1:1 | 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.
Roubler gotchas
Roubler was acquired by MYOB — data residency and support continuity are migration-critical
No public pricing or free trial — migration budget must be negotiated blind
API is incomplete and expanding — endpoint availability varies by object
Australian-centric defaults may persist in international deployments
Document attachments are not accessible via the public API
Bullhorn ATS & CRM gotchas
ATS Growth edition has no API access
Attachments excluded from CSV bulk exports
Custom Object limits vary sharply by edition
Opportunity pipeline stages are recruitment-specific
Resume parse quality varies by document format
Pair-specific challenges
Migration approach
Discovery and Bullhorn edition confirmation
We audit the source Roubler instance for record counts (Employees, Positions, Rosters, Leave Balances, Timesheets, Payroll Runs), custom field definitions, active integrations (Xero, MYOB, POS systems), document attachment volume, and API endpoint reachability for each object type. We confirm the destination Bullhorn edition (ATS Growth, Starter, Core, Pro, or Enterprise) because ATS Growth excludes API access and requires a CSV-based import strategy. The discovery output is a written migration scope with object counts, an API probe report, and a Bullhorn edition recommendation.
Schema design and custom field provisioning
We design the Bullhorn destination schema. This includes creating custom fields on Candidate (leave balance fields, employment type, original Roubler employee ID) and on JobOrder (FTE value, position tasks, demand-based allocation fields). We create a placeholder ClientCorporation record for internal staffing agency staff that map to ClientContact. Bullhorn's custom field API names follow a naming convention; we match Roubler custom field names to Bullhorn custom field labels and let Bullhorn generate the API names. Schema is deployed into a Bullhorn Sandbox org first for validation before production migration.
Sandbox migration and reconciliation
We run a full migration into a Bullhorn Sandbox using a representative data sample (at minimum 100 records per object type). The customer's Bullhorn admin reconciles record counts, spot-checks field values against the Roubler source, and validates that Candidate records are correctly linked to JobOrders and Placements. Custom field mapping and data type alignment are corrected in this phase. The customer signs off the sandbox mapping before production migration begins.
Document export and integration inventory
We deliver a document export checklist to the customer for all employee documents (contracts, IDs, certifications) that cannot be retrieved via Roubler's API. The customer exports these manually from Roubler's UI and organizes them by employee name. We provide a file naming convention mapping each document to the corresponding Bullhorn Candidate record. We also deliver an integration inventory document listing each active Roubler integration with its endpoint configuration for rebuilding in Bullhorn or through a Bullhorn App marketplace alternative.
Production migration in dependency order
We run production migration in record-dependency order. ClientCorporation (placeholder) is created first. Candidates are imported with a mapping to ClientCorporation where applicable. JobOrders are created from Roubler Position definitions. Placements are created linking Candidates to JobOrders with Roster data (dates, location) mapped. Custom fields for leave balances, timesheet totals, and employment type are populated per Candidate. Timesheet aggregates and payroll run summaries are delivered as structured data exports alongside the migration. Each phase emits a row-count reconciliation report before the next phase begins.
Cutover, validation, and handoff
We freeze Roubler writes during cutover, run a final delta migration of any records modified during the migration window, and hand off Bullhorn as the system of record. We deliver the integration rebuild inventory and the document re-upload checklist to the customer's admin team. We support a one-week hypercare window for reconciliation issues. We do not rebuild Roubler integrations or onboarding workflows in Bullhorn inside the migration scope; those are separate configuration tasks for the customer's Bullhorn admin or a Bullhorn implementation partner.
Platform deep dives
Roubler
Source
Strengths
Weaknesses
Bullhorn ATS & CRM
Destination
Strengths
Weaknesses
Complexity grading
Standard HRMS migration. 1 of 7 objects need a mapping; the rest are 1:1.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Roubler and Bullhorn ATS & CRM.
Object compatibility
1 of 7 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
7-object category — typical timelines run 2–7 days end-to-end.
API constraints
Roubler: Not publicly documented.
Data volume sensitivity
Roubler 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.
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