HRMS migration
Field-level mapping, validation, and rollback between Omni HR and BambooHR. We move data and schema; workflows are rebuilt natively in BambooHR.
Omni HR
Source
BambooHR
Destination
Compatibility
8 of 10
objects map 1:1 between Omni HR and BambooHR.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Omni HR and BambooHR organize HR data differently. Omni HR uses an Asia-Pacific-centric model with built-in statutory compliance for Singapore CPF, Hong Kong MPF, and Malaysia EPF; BambooHR is a US-centric HRIS without native payroll for Asian markets. This means payroll data, country-specific deductions, and bank account details require explicit mapping and manual review rather than automated import. We export from Omni HR via paginated API requests throttled to 60 requests per minute, map every standard field 1:1, flag custom fields defined in Omni HR's workbook schema, and deliver a written inventory of active workflows and approval chains for the customer to rebuild in BambooHR. Time Off balances, Performance Review ratings, and Onboarding checklist states migrate fully; pending approvals and e-signature metadata do not.
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 Omni HR object lands in BambooHR, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
Omni HR
Employee
BambooHR
Employee
1:1Omni HR Employee records map to BambooHR Employee (the core employee table). Standard fields including name, contact info, employment status, department, job title, manager assignment, start date, and work location migrate 1:1. BambooHR's employee API endpoint accepts these fields directly. Employee ID in Omni HR becomes the BambooHR employeeId or is preserved in a custom field for dedupe reconciliation.
Omni HR
Candidate
BambooHR
Applicant
1:1Omni HR recruitment candidates map to BambooHR Applicants. Stage names (application, screening, interview, offer) are mapped to BambooHR's applicantStatus values. Custom candidate fields defined in Omni HR's recruitment module migrate as BambooHR custom fields on the applicant record. BambooHR's ATS is limited to 5, 25, or 50 open jobs depending on plan tier.
Omni HR
Onboarding
BambooHR
Onboarding Packet
1:1Omni HR onboarding task checklists and completion states map to BambooHR's New Hire Packet feature. Task names and completion flags migrate; the specific task sequence and conditional routing within Omni HR do not. We preserve the checklist structure as a static ordered list in BambooHR's onboarding setup. E-signature metadata does not transfer and must be re-collected from the new hire post-migration.
Omni HR
Time Off
BambooHR
Time Off
1:1Historical leave requests (dates, leave type, approval status) and current accrual balances migrate to BambooHR Time Off. Pending requests at migration time are flagged for manual follow-up because BambooHR does not accept a pending-request import state that bypasses its own approval workflow engine. Leave type names from Omni HR (annual leave, sick leave, etc.) are mapped to BambooHR Time Off Policy types.
Omni HR
Performance Review
BambooHR
Performance Review
1:1Performance review cycles, reviewer assignments, ratings, and written feedback text migrate to BambooHR Performance Management. Rating scales from Omni HR (numeric, letter-grade, or custom) are mapped to BambooHR's review cycle configuration. Review cycle setup (rating scales, template structure, review period dates) requires reconfiguration in BambooHR by the admin.
Omni HR
Document
BambooHR
Files
1:1Employee documents (contracts, IDs, offer letters) stored as file attachments in Omni HR are exported with their filenames and binary content. We import them into BambooHR's Files section linked to the corresponding employee record. File naming conventions and folder structures from Omni HR are not preserved automatically; we deliver a document mapping spreadsheet so the customer can reorganize post-import if needed.
Omni HR
Expense
BambooHR
(No direct equivalent)
lossyOmni HR expense submissions and reimbursement records have no native BambooHR equivalent. BambooHR Core does not include expense management. We export the expense records as a CSV inventory (employee, date, amount, category, approval status, cost center) and recommend the customer evaluate BambooHR's integration with an expense platform such as Expensify or reimburse manually during the transition period.
Omni HR
Payroll Run
BambooHR
(Flagged for manual reconciliation)
lossyOmni HR payroll data—including pay period, gross/net amounts, YTD accumulations, and country-specific statutory deductions (CPF, MPF, EPF)—is exported but cannot be directly imported into BambooHR because BambooHR does not have a native Asia payroll module. We deliver the payroll history as a structured CSV with country-aware field labeling so the customer's payroll team can manually enter YTD accumulations and benefits elections into BambooHR or a separate payroll processor post-migration.
Omni HR
Custom Field
BambooHR
Custom Field
1:1Omni HR custom fields defined at the workbook level require a two-step export: first the field schema (field name, data type, allowed values) from the workbook configuration endpoint, then the stored values from the employee record endpoint. Both are mapped to BambooHR custom fields on the Employee object. Field types (text, number, date, dropdown) are matched to equivalent BambooHR field types. Dropdown fields require value-list matching to ensure the imported value exists in BambooHR's allowed values list.
Omni HR
Org Chart
BambooHR
Employee Reporting Structure
1:1Organizational hierarchy is derived from Omni HR manager assignments on employee records. We extract the reporting chain (employee, manager employeeId) and reconstruct it in BambooHR using the manager field on each Employee record. BambooHR does not have a dedicated org chart visualization API; the hierarchy is visible through BambooHR's native reporting and directory views.
| Omni HR | BambooHR | Compatibility | |
|---|---|---|---|
| Employee | Employee1:1 | Fully supported | |
| Candidate | Applicant1:1 | Fully supported | |
| Onboarding | Onboarding Packet1:1 | Mapping required | |
| Time Off | Time Off1:1 | Fully supported | |
| Performance Review | Performance Review1:1 | Fully supported | |
| Document | Files1:1 | Fully supported | |
| Expense | (No direct equivalent)lossy | Fully supported | |
| Payroll Run | (Flagged for manual reconciliation)lossy | Fully supported | |
| Custom Field | Custom Field1:1 | Fully supported | |
| Org Chart | Employee Reporting Structure1:1 | Mapping required |
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.
Omni HR gotchas
API rate limit of 60 req/min constrains bulk migration speed
No bulk export API — all records require individual paginated requests
Payroll data requires country-aware field mapping
Custom field definitions are workbook-scoped and not fully documented in the public API reference
Workflow configurations are not exportable via API
BambooHR gotchas
Undocumented API rate limits can trigger 503 errors
Per-employee pricing model requires active record count verification
API credentials must be sent on every request to avoid extra round trips
Custom field schema varies per account and requires manual inventory
Document and attachment exports are not covered by standard report exports
Pair-specific challenges
Migration approach
Discovery and data audit
We audit the source Omni HR instance across all modules: employee count, time-off history volume, payroll run count and date range, onboarding record count, performance review cycles, document archive size, and any active custom field schemas. We identify the active workflow configurations and approval chains that require documentation. We confirm the destination BambooHR plan tier and verify that the ATS job opening limit (5, 25, or 50) covers the customer's current open positions. The discovery output is a written migration scope with record counts per object and a payroll-flagged risk register.
Schema extraction and custom field resolution
We export Omni HR's workbook schema alongside employee records to capture both field definitions and stored values for any custom fields. We extract payroll data with country-aware field labeling (CPF, MPF, EPF fields flagged explicitly). We pull the org chart as a manager-employee relationship table. All exports run with pagination and throttling to the 60 req/min limit. We do not extract workflow configurations from Omni HR's internal engine; we document them manually during a guided session with the customer's Omni HR admin.
Mapping design and BambooHR configuration
We design the mapping from Omni HR objects to BambooHR objects, including time-off type mapping, leave balance carry-forward logic, custom field name and type matching, and document linking. For payroll, we design the CSV export format with country-aware field labeling for manual reconciliation. We verify BambooHR field type compatibility for every mapped custom field, particularly dropdown lists where Omni HR allowed values must exist in BambooHR's allowed values list before import.
Rate-limited export and data staging
We run data extraction from Omni HR in a staging environment using paginated API requests throttled to 60 req/min. Employee records, time-off history, performance reviews, and document binaries export in sequence. Payroll history exports with statutory field labeling. We produce row-count reconciliation reports for each object type and validate field counts before preparing the import payload for BambooHR. Any pending time-off requests or incomplete onboarding tasks are flagged in the reconciliation report for manual follow-up.
BambooHR import in dependency order
We import into BambooHR in dependency order: Employees first (with manager lookups resolved from the org chart table), then time-off balances and history, then onboarding task states, then performance review records, then documents. Custom fields are imported after their definitions are created in BambooHR. Payroll CSV is delivered separately for manual entry. Each phase produces a reconciliation report comparing Omni HR row counts to BambooHR imported counts before the next phase begins.
Cutover, validation, and workflow handoff
We freeze Omni HR write access during cutover, run a final delta export of any records modified during the migration window, and load the delta into BambooHR. We deliver the complete reconciliation report with record counts per object and a 20-record spot-check validation against the Omni HR source. We deliver the workflow inventory document listing every active Omni HR workflow with its configuration details for the customer to rebuild in BambooHR. We offer a one-week hypercare window for reconciliation issues. We do not rebuild workflows, configure approval routing, or set up BambooHR payroll as part of standard migration scope.
Platform deep dives
Omni HR
Source
Strengths
Weaknesses
BambooHR
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 Omni HR and BambooHR.
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
Omni HR: 60 requests per minute per API key.
Data volume sensitivity
Omni HR 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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