HRMS migration

Migrate from Omni HR to Bullhorn ATS & CRM

Field-level mapping, validation, and rollback between Omni HR and Bullhorn ATS & CRM. We move data and schema; workflows are rebuilt natively in Bullhorn ATS & CRM.

Omni HR logo

Omni HR

Source

Bullhorn ATS & CRM

Destination

Bullhorn ATS & CRM logo

Compatibility

92%

11 of 12

objects map 1:1 between Omni HR and Bullhorn ATS & CRM.

Complexity

BStandard

Timeline

2-4 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Omni HR and Bullhorn are different platform categories. Omni HR is an all-in-one HRIS covering the full employee lifecycle from recruitment offer through payroll and performance. Bullhorn is a recruitment ATS and CRM built for staffing agencies, with data structures organized around Candidates, Clients, Jobs, Placements, and Leads. There is no native 1:1 object mapping between these two schemas. We export Omni HR employee records, candidate recruitment data, and company profiles, then transform and load them into Bullhorn's Candidate and ClientCorporation objects. Bullhorn's custom object system requires Bullhorn Support to provision custom fields before migration; we coordinate that provisioning during the configuration phase. Omni HR payroll history, time-off accruals, performance reviews, and expense records do not have Bullhorn equivalents and are flagged as manual-rebuild items. Bullhorn's API has no documented public rate limit for inbound migration, but we implement throttling to 60 requests per minute on the Omni HR side to protect source stability during export.

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

Omni HR logo

Omni HR

What's pushing teams away

  • Relatively immature product with a limited feature set compared to established global HRIS platforms — early-stage development means some enterprise-grade features (advanced reporting, deep integrations) are still catching up.
  • Small customer base and limited third-party integration ecosystem — organizations requiring tight integrations with tools outside the standard stack (specific ATS, ERP, or industry-specific software) find Omni HR's integration library restrictive.
  • API documentation and developer ecosystem are underdeveloped — technical teams report that API reference docs lack detailed endpoint coverage and example payloads, making custom integrations harder to build and debug.
  • Performance and stability concerns at scale — while customers with 50-500 employees report solid reliability, reviews note that the platform was designed for SMB and mid-market, and large enterprise deployments may encounter performance ceilings.
  • Lack of transparency on pricing at higher tiers — the $3/user/month starting price does not clearly communicate what is included in mid-market or enterprise plans, causing some buyers to churn when actual costs exceed initial expectations.

Choosing

Bullhorn ATS & CRM logo

Bullhorn ATS & CRM

What's pulling them in

  • Agencies choose Bullhorn because it combines ATS and CRM in one platform, eliminating the need to switch between separate tools for candidate management and client relationship tracking.
  • The resume parser extracts contact details, work history, and skills into structured, searchable candidate profiles automatically without manual data entry, reportedly driving 24% more placements per recruiter.
  • Bullhorn's placement and split-billing model natively supports contract staffing workflows, handling start/end dates, overtime rules, and multi-party pay/charge rates in a single record.
  • The platform offers extensive third-party integrations through its Recruitment Cloud Marketplace, connecting with back-office, onboarding, and payroll systems used by staffing agencies.
  • 72% of Bullhorn customers are teams with fewer than 10 users, and Bullhorn's implementation team handles setup and data migration for small agencies going live within weeks.

Object mapping

How Omni HR objects map to Bullhorn ATS & CRM

Each row shows how a Omni HR 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.

Omni HR

Employees

maps to

Bullhorn ATS & CRM

Candidate

1:1
Fully supported

Omni HR Employee records map to Bullhorn Candidate. Profile fields (name, email, phone, address, employment status, department, job title, start date, manager) migrate 1:1 into Bullhorn Candidate standard fields. Omni HR custom properties on employees map to Bullhorn custom fields on the Candidate entity. Bullhorn Support must provision customObject1 through customObject10 on Candidate before migration if any Omni HR custom fields exist. We coordinate this provisioning during the configuration phase. Historical employment data (prior companies, previous titles) migrates into Candidate work history custom fields or as separate CandidateWorkHistory records if the destination Bullhorn instance has that entity enabled.

Omni HR

Candidates (Recruitment module)

maps to

Bullhorn ATS & CRM

Candidate

1:1
Fully supported

Omni HR recruitment candidate records map directly to Bullhorn Candidate. Application stage names from Omni HR (Applied, Screening, Interview, Offer, Hired) map to Bullhorn Candidate status or a custom status field we configure during migration. Resume content migrates into the Candidate's attached resume or the resume field. Source attribution (where the candidate came from) migrates to the Candidate source field.

Omni HR

Companies

maps to

Bullhorn ATS & CRM

ClientCorporation

1:1
Fully supported

Omni HR Company records (if present as part of the Omni HR recruitment module) map to Bullhorn ClientCorporation. Company name, industry, website, address, and primary contact details migrate into Bullhorn ClientCorporation standard fields. The ClientCorporation record is created first so that subsequent Contact and Candidate-to-Client associations resolve correctly at import time.

Omni HR

Onboarding records

maps to

Bullhorn ATS & CRM

Task (manual rebuild)

1:1
Fully supported

Omni HR Onboarding records (task checklists, document collection status, e-signature completions) have no Bullhorn equivalent. Bullhorn does not store internal employee onboarding state as a native object. We export the Omni HR onboarding task list and completion status as a written checklist document that the customer's Bullhorn admin uses to manually configure Tasks or a custom onboarding tracking object post-migration. E-signature metadata does not transfer and requires re-execution in Bullhorn's document tools.

Omni HR

Time Off

maps to

Bullhorn ATS & CRM

Custom Object or Note (flag for rebuild)

1:1
Fully supported

Omni HR leave requests and accrued balances have no Bullhorn equivalent. Bullhorn is a recruitment ATS, not an HRIS, and does not natively track employee time-off balances or approval workflows. We export leave history (request dates, leave type, approval status, accrual balances) as a CSV inventory for the customer's admin to re-enter in their separate HRIS or in Bullhorn custom fields if they configure a leave tracking object. Pending leave requests are flagged as open items requiring manual resolution before migration cutover.

Omni HR

Performance Reviews

maps to

Bullhorn ATS & CRM

Custom Object or Note (flag for rebuild)

1:1
Mapping required

Omni HR performance review cycles, ratings, and feedback text have no Bullhorn equivalent. Bullhorn does not store internal employee performance data as a standard object. We export performance records as a structured CSV inventory including reviewer assignments, rating values, review cycle dates, and feedback content. The customer's admin rebuilds these in a separate performance management tool or in Bullhorn custom fields if they provision a Performance custom object.

Omni HR

Documents

maps to

Bullhorn ATS & CRM

ContentDocument (partial)

1:1
Mapping required

Employee documents (contracts, IDs, offer letters) stored in Omni HR migrate as Bullhorn ContentDocument records attached to the corresponding Candidate or ClientCorporation via ContentDocumentLink. We export document content, filenames, and MIME types. Document-to-employee associations migrate as ContentDocumentLink records. Bullhorn's document viewer and e-signature capabilities replace Omni HR's document handling post-migration.

Omni HR

Expenses

maps to

Bullhorn ATS & CRM

Custom Object or Note (flag for rebuild)

1:1
Mapping required

Omni HR expense submissions and reimbursement records have no Bullhorn equivalent. Bullhorn is a recruitment ATS and does not handle employee expense management. We export expense records (submission dates, amounts, cost centers, approval status) as a CSV for the customer's admin to re-enter in their separate expense management tool. Approved and pending expense statuses are flagged during scoping.

Omni HR

Payroll Runs

maps to

Bullhorn ATS & CRM

Custom Object or Note (flag for rebuild)

1:1
Mapping required

Omni HR payroll history (pay periods, gross/net amounts, statutory deductions including CPF, MPF, EPF contributions) has no Bullhorn equivalent. Bullhorn does not process payroll. We export payroll year-to-date accumulations, deduction amounts, and bank account details as a structured CSV for the customer's admin to import into their separate payroll system. Country-specific statutory fields are preserved with their original values and field names for compliance reference.

Omni HR

Org Chart

maps to

Bullhorn ATS & CRM

Candidate reporting relationships

1:1
Mapping required

Omni HR organizational hierarchy derived from manager assignments on employee profiles migrates into Bullhorn as Candidate reporting structure if the Bullhorn instance has a custom field or custom object for internal hierarchy. Bullhorn's primary use case is external recruitment rather than internal org structure, so the hierarchy is preserved as a reference mapping rather than a native Bullhorn object. We deliver the org chart as a written document and CSV for manual configuration.

Omni HR

Custom Fields

maps to

Bullhorn ATS & CRM

CustomObject1-10 (per entity)

lossy
Mapping required

Omni HR workbook-scoped custom fields require a two-step export: first the field definition metadata (field name, data type, allowed values) from Omni HR's workbook schema, then the stored values from the employee or candidate records. Bullhorn custom fields on Candidate, ClientCorporation, JobOrder, Placement, Opportunity, and Lead must be provisioned by Bullhorn Support before migration. We coordinate the provisioning ticket, define the target customObject schema during scoping, and map Omni HR's custom field values into Bullhorn custom fields during import. If Omni HR has more than 10 custom fields on any entity, we prioritize the most business-critical fields and flag the remainder for post-migration manual entry.

Omni HR

Workflows

maps to

Bullhorn ATS & CRM

None

1:1
Not supported

Omni HR approval routing rules, leave approval chains, onboarding automation triggers, and notification workflows are stored in Omni HR's workflow engine and are not accessible via the public API. We do not export or import workflow configurations. During scoping, we document the active workflow rules (approval chains, escalation paths, automation triggers) as a written inventory so the customer's Bullhorn admin can re-implement them in Bullhorn Automation (formerly Herefish) or configure them manually post-migration.

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.

Omni HR logo

Omni HR gotchas

High

API rate limit of 60 req/min constrains bulk migration speed

Medium

No bulk export API — all records require individual paginated requests

High

Payroll data requires country-aware field mapping

Medium

Custom field definitions are workbook-scoped and not fully documented in the public API reference

Low

Workflow configurations are not exportable via API

Bullhorn ATS & CRM logo

Bullhorn ATS & CRM gotchas

High

ATS Growth edition has no API access

High

Attachments excluded from CSV bulk exports

Medium

Custom Object limits vary sharply by edition

Medium

Opportunity pipeline stages are recruitment-specific

Low

Resume parse quality varies by document format

Pair-specific challenges

  • Omni HR is an HRIS; Bullhorn is a recruitment ATS — schemas do not align 1:1

    Omni HR organizes data around the internal employee lifecycle (payroll, time-off, performance, onboarding). Bullhorn organizes data around the external recruitment lifecycle (Candidates, ClientCorporations, Jobs, Placements). Time-off balances, performance reviews, payroll runs, and onboarding task states have no Bullhorn equivalent. We flag these as manual-rebuild items and migrate only the employee profile and any recruitment candidate data. Customers who expect Bullhorn to replace Omni HR for internal HR operations will be disappointed; Bullhorn must be paired with a separate HRIS for payroll, time-off, and performance management.

  • Bullhorn custom fields require Support provisioning before migration

    Bullhorn's custom fields (customObject1 through customObject10 on any entity) cannot be created via the admin UI alone for all entity types. The Bullhorn REST API documentation states that custom objects must initially be set up by Bullhorn Support via a support ticket. If Omni HR has any custom fields on employee or candidate records, we must submit a Bullhorn Support ticket to provision the corresponding customObject fields before data import begins. This adds 3-7 business days to the project timeline and must be initiated during the configuration phase, not at migration time.

  • Omni HR API rate limit constrains export throughput

    Omni HR enforces a hard limit of 60 requests per minute per API key. Every record type — employee, payroll run, time-off request, document — requires an individual paginated request. There is no bulk export endpoint. For a 200-employee company with three years of history, this can mean thousands of individual API calls over several hours. We throttle exports to the 60 req/min limit to protect source stability and communicate estimated export duration upfront based on record count.

  • Document attachments require file download and re-upload

    Omni HR stores employee documents (contracts, IDs, offer letters) as file attachments that must be individually downloaded via the API and re-uploaded to Bullhorn as ContentDocument records. If an employee has 10+ document attachments, this multiplies the API request count and download time significantly. We download attachments in parallel batches (within the 60 req/min throttle), store them in a staging environment, and upload them to Bullhorn with ContentDocumentLink associations to the corresponding Candidate record.

  • Omni HR payroll data requires country-aware manual review

    Omni HR stores payroll with country-specific statutory fields: Singapore CPF, Hong Kong MPF, Malaysia EPF, and similar regional schemes. Bullhorn does not process payroll and has no equivalent statutory deduction fields. We export payroll history as a structured CSV with original field names and values intact for compliance reference. The customer's payroll team or HR admin must re-enter this data into their separate payroll system post-migration. We flag any field that contains statutory deduction values during scoping so the payroll team can confirm the correct equivalent field at the destination.

Migration approach

Six steps for a successful Omni HR to Bullhorn ATS & CRM data migration

  1. Discovery and migration scope definition

    We audit the Omni HR portal to identify which modules are in active use: employee profiles, recruitment candidates, onboarding records, time-off requests, performance reviews, documents, expenses, and payroll history. We separate recruitment-relevant data (candidate profiles, skills, employment history) from internal HR data (payroll, time-off, performance) and document which records will migrate to Bullhorn versus which will be flagged as manual-rebuild items. We also catalog any Omni HR custom fields and submit the Bullhorn Support ticket for customObject provisioning during this phase.

  2. Schema design and Bullhorn custom field coordination

    We design the Bullhorn destination schema: standard fields on Candidate and ClientCorporation, custom field assignments on customObject1-10 per entity, Candidate status values mapped from Omni HR recruitment stages, and any required custom picklist values. We coordinate with Bullhorn Support to confirm customObject provisioning and validate the schema in a Bullhorn sandbox environment before production migration begins.

  3. Omni HR data export with API throttling

    We export Omni HR data in dependency order: employee profiles first (for dedupe key resolution), then recruitment candidates, document metadata, org chart hierarchy, and any onboarding task lists. Each export run is throttled to 60 requests per minute. We export workbook schema metadata for any custom fields alongside the record values to capture both field definitions and stored data. Document file downloads run in parallel within the throttle limit and are staged in a secure cloud storage environment.

  4. Data transformation and reconciliation

    We transform Omni HR records into Bullhorn-format payloads: Omni HR Employees to Bullhorn Candidate records, Omni HR Companies to Bullhorn ClientCorporation records, recruitment stages to Bullhorn Candidate status values, and custom field values to Bullhorn customObject fields. We run a reconciliation pass comparing Omni HR record counts to generated Bullhorn payload counts, flag any records with missing required fields, and resolve Owner-to-User mappings by email match. Document files are validated for MIME type and size before Bullhorn upload.

  5. Sandbox migration and sign-off

    We run a full migration into a Bullhorn sandbox to validate the schema, field mappings, and document attachments before production. The customer's Bullhorn admin reviews 25-50 randomly selected Candidate records, verifies document associations, and confirms that the custom field values have landed correctly. We correct any mapping errors identified during sandbox review and receive written sign-off before production migration begins.

  6. Production migration and cutover

    We run production migration in dependency order: ClientCorporations first, then Candidates with resolved document attachments, then custom objects with customObject fields. Each phase emits a reconciliation report (records in, records out, errors). We freeze Omni HR writes during cutover, run a final delta migration of any records modified during the migration window, then enable Bullhorn as the system of record for recruitment operations. We deliver the manual-rebuild inventory (time-off, performance, payroll, onboarding tasks, workflows) as a written document for the customer's admin team.

  7. Post-migration support and rebuild handoff

    We support a one-week hypercare window after cutover to resolve any data quality issues discovered in Bullhorn. We do not rebuild Omni HR workflows, onboarding automation, or approval chains in Bullhorn; those are delivered as a written inventory with Bullhorn Automation (Herefish) configuration notes for the customer's admin team. Bullhorn onboarding, payroll, time-off, and performance management remain the customer's separate HRIS responsibility post-migration.

Platform deep dives

Context on both ends of the pair

Omni HR logo

Omni HR

Source

Strengths

  • All-in-one HRIS consolidating recruitment, onboarding, payroll, time off, and performance into a single platform.
  • Modern, clean user interface that HR teams and employees find intuitive with minimal training required.
  • Workflow automation engine that handles leave approvals, onboarding tasks, and payroll triggers without manual intervention.
  • Multi-country compliance coverage across 190+ countries with built-in support for APAC statutory schemes.
  • Cloud-based with mobile app access for iOS and Android, enabling on-the-go HR task management.

Weaknesses

  • Small market footprint (15 confirmed customers per 6sense) and limited enterprise reference base compared to competitors like BambooHR or Deel.
  • API is rate-limited to 60 requests per minute per key, which constrains bulk data export and large migration throughput.
  • Product founded in 2021 and actively developing — some features present in competitive products are still missing or in beta.
  • Limited documented integrations with third-party ATS, ERP, and industry-specific tools beyond standard HR functions.
  • Pricing transparency is low — the starting price of $3/user/month does not clearly indicate what features are tier-gated.
Bullhorn ATS & CRM logo

Bullhorn ATS & CRM

Destination

Strengths

  • Unified ATS and CRM on one platform purpose-built for staffing agencies, eliminating separate tools for candidates and clients.
  • Automated resume parsing extracts structured candidate data—contact details, work history, skills—into searchable profiles instantly.
  • Native placement and split-billing model handles contract staffing workflows including start/end dates and overtime rules.
  • Bullhorn Recruitment Cloud Marketplace offers 100+ pre-validated third-party integrations spanning the full recruiting lifecycle.
  • 24/7 global support coverage from 350+ support staff with dedicated account management included at all tiers.

Weaknesses

  • Widely regarded as old and bloated with an unintuitive interface and steep learning curve for new recruiters.
  • Slow page loads and performance lag cited in over 200 verified G2 reviews during high-volume recruiting periods.
  • Pricing is opaque—custom-negotiated per organization with significant upfront implementation fees that vary by deal.
  • ATS Growth edition excludes API access entirely, preventing automated data export without upgrading first.

Complexity grading

How hard is this migration?

Standard HRMS migration. 1 of 7 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 Omni HR and Bullhorn ATS & CRM.

  • Object compatibility

    B

    1 of 7 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

    7-object category — typical timelines run 2–7 days end-to-end.

  • API constraints

    B

    Omni HR: 60 requests per minute per API key.

  • Data volume sensitivity

    B

    Omni HR doesn't expose a bulk API — REST + parallelization used for high-volume runs.

Estimator

Estimate your Omni HR to Bullhorn ATS & CRM 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 Omni HR to Bullhorn ATS & CRM data migrations

Answers to the questions buyers ask most during Omni HR to Bullhorn ATS & CRM migration scoping. Not seeing yours? Book a call.

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Most migrations land between two and four weeks for organizations with under 500 employee records and no complex custom field schemas. Bullhorn's own implementation team cites two to six weeks for small and mid-size staffing agencies transitioning from a basic ATS or spreadsheet system. Migrations with large document attachment libraries (1,000+ files), multi-country payroll history, active custom field definitions requiring Bullhorn Support coordination, and five or more years of employee history extend to six to ten weeks because of export throttling, document download time, and sandbox reconciliation.

Adjacent paths

Related migrations to explore

Ready when you are

Move from Omni HR.
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