HRMS migration
Field-level mapping, validation, and rollback between EPAY HCM and BambooHR. We move data and schema; workflows are rebuilt natively in BambooHR.
EPAY HCM
Source
BambooHR
Destination
Compatibility
7 of 11
objects map 1:1 between EPAY HCM and BambooHR.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Moving from EPAY HCM to BambooHR is a simplification migration: EPAY bundles recruiting, onboarding, HR, benefits, payroll, tax filing, and labor allocation under a single fixed per-employee contract, while BambooHR focuses on core HRIS (employee records, onboarding, benefits, payroll at some tiers, and performance reviews) with an open REST API. EPAY has no public API, so all data extraction requires vendor-assisted export coordination; we request exports early in scoping and validate record counts before beginning transformation. We preserve the complete compensation timeline (pay rates, bonuses, effective-dated changes) in BambooHR's payRate and payType fields, and we flag that garnishment orders, tax filing history, job costing assignments, and ACA compliance data have no native BambooHR equivalent and must be retained in EPAY or documented for manual re-entry. Workflows, automation rules, and time-tracking schedules do not migrate; we deliver a written inventory of these for the customer's admin to rebuild in BambooHR or a separate scheduling tool.
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 EPAY HCM 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.
EPAY HCM
Employee
BambooHR
Employee
1:1EPAY Employee records (personal info, employment history, job titles, departments, locations, hire dates, termination dates) map directly to BambooHR Employee. We use BambooHR's GET /v1/employees/directory endpoint for the initial export and resolve custom fields via GET /v1/meta/fields per the BambooHR field-request model. BambooHR does not paginate the employee list — all employees return in a single response, so large workforces require chunked processing in the transformation layer. Employment status (active, inactive, terminated) maps from EPAY's employmentHistoryStatus to BambooHR's status field.
EPAY HCM
Compensation Records
BambooHR
Pay Rate fields
1:1EPAY's pay rate, salary history, pay frequency, bonus payments, and effective-dated compensation changes map to BambooHR's payRate, payType, payPeriod, and effectiveDate fields. BambooHR supports one active compensation record at a time per employee; we handle EPAY's historical compensation timeline by creating a sequence of compensation records with effectiveDate stamps during the migration. Bonuses and one-time payments migrate as separate entries in BambooHR's payRate where the payType indicates bonus or supplemental pay. Note that BambooHR does not support complex multi-component compensation structures (such as market-indexed pay or graduated commission tiers) in native fields.
EPAY HCM
Benefits Enrollments
BambooHR
Benefits
1:1EPAY benefit plan assignments, coverage tiers, enrollment dates, and dependent information map to BambooHR's Benefits module. Plan names, carrier information, and coverage level (employee, employee-plus-spouse, family) migrate as structured benefit records. However, many insurance carriers require employees to re-enroll directly through the carrier portal or BambooHR's carrier integration after migration. We export the full enrollment dataset as supporting documentation and map it to BambooHR's benefits module, but advise budgeting for a two-to-four week parallel re-enrollment window with each benefits vendor before the first BambooHR payroll run.
EPAY HCM
Time and Attendance Logs
BambooHR
Time Off policies and requests
lossyEPAY's clock-in/clock-out data, overtime records, accrual balances, and scheduling rules represent a data volume that BambooHR does not natively store or display. We map active accrual balances (PTO, sick leave, holiday hours) to BambooHR Time Off policies as opening balances, enabling employees to continue using accrued time after cutover. Historical punch-level data (clock events, break times, overtime hours) does not have a destination equivalent in BambooHR and is exported as a CSV archive for the customer's records. Scheduling rules and shift configurations do not migrate; we document the active schedule structures for the customer's admin to reconfigure in BambooHR's scheduling module or a dedicated scheduling tool.
EPAY HCM
Job Costing and Labor Allocation
BambooHR
Not supported
1:1EPAY job costing features (cost center assignments, project code allocations, department-level labor budgeting) have no native equivalent in BambooHR's object model. We export the active cost center and project code assignments per employee as a reference CSV, map them to a custom multi-select picklist field in BambooHR (configured during migration), and flag that BambooHR does not support labor allocation reporting or job costing rollups. Customers relying on EPAY's job costing for billing, project tracking, or cost accounting must retain access to EPAY's reporting for these functions or implement a third-party labor allocation tool post-migration.
EPAY HCM
Payroll Processing History
BambooHR
Not supported as historical record
lossyEPAY payroll run records (earnings, deductions, taxes, net pay by pay period) do not migrate into BambooHR as historical payroll records because BambooHR stores payroll data differently depending on the tier and does not maintain a full payroll run history accessible as an importable object. We export the most recent twelve months of payroll summaries per employee as a structured CSV archive and map year-to-date earnings and tax withholding totals to BambooHR's payRate and custom year-to-date fields for payroll processing continuity. Tax filing history and historical W-2 data remain in EPAY for lookback purposes.
EPAY HCM
Garnishments and Deductions
BambooHR
Not supported
lossyEPAY court-ordered garnishments, wage deductions, and voluntary deduction codes with current balances have no BambooHR equivalent object. Active garnishment orders require manual re-entry in BambooHR's payroll module (if payroll is subscribed) or in the customer's payroll provider's system before the first post-migration payroll run. We export the current deduction codes, deduction types, percentage or fixed amounts, and remaining balances as a structured handoff document. This is one of the highest-risk migration items: missed or incorrectly entered garnishments can result in legal liability for the employer.
EPAY HCM
Performance Review Records
BambooHR
Performance Reviews
1:1EPAY performance review cycles, 360-degree feedback, journaling entries, and review status tracking map to BambooHR's Performance Reviews module. Review dates, overall scores, status (draft, submitted, approved), and reviewer names migrate directly. Written feedback content migrates as text fields attached to the review record. Note that BambooHR's review cycle structure (annual, semi-annual, custom) may differ from EPAY's; we map the source review frequency to the closest BambooHR equivalent and flag any review templates requiring manual reconstruction.
EPAY HCM
Learning and Training Records
BambooHR
Limited support
1:1EPAY course completion records, custom certificates, and training status map to BambooHR where the training module is available on the subscribed tier. Completion dates, course names, and certificate metadata migrate as training entries. BambooHR's training module supports course tracking and completion records but does not replicate complex custom course structures or curriculum sequences from EPAY. We export the full training history as a CSV archive and map what the BambooHR training module can consume; the customer's HR admin rebuilds curriculum structures in BambooHR if needed.
EPAY HCM
ACA Compliance Data
BambooHR
Not supported
lossyEPAY ACA measurement data, coverage offer records, and enrollment status for Affordable Care Act compliance have no native equivalent in BambooHR. We export the current ACA measurement period data, eligibility status, and coverage offer history as a compliance archive. The customer's HR team or legal counsel must determine how to maintain ACA compliance documentation post-migration, which may involve a separate ACA tracking tool or retaining EPAY access for compliance lookback during the measurement period.
EPAY HCM
Employee Files and Documents
BambooHR
Employee Files
1:1EPAY stored employee documents (offer letters, contracts, signed agreements, identification copies) migrate as BambooHR Employee Files attached to the corresponding employee record via the BambooHR Files API. We resolve file attachments by employee ID match and map the document type (I-9, W-4, offer letter, etc.) to the BambooHR file category. BambooHR's file storage limits apply per the subscribed plan; we verify storage availability before importing large document volumes.
| EPAY HCM | BambooHR | Compatibility | |
|---|---|---|---|
| Employee | Employee1:1 | Fully supported | |
| Compensation Records | Pay Rate fields1:1 | Fully supported | |
| Benefits Enrollments | Benefits1:1 | Mapping required | |
| Time and Attendance Logs | Time Off policies and requestslossy | Mapping required | |
| Job Costing and Labor Allocation | Not supported1:1 | Mapping required | |
| Payroll Processing History | Not supported as historical recordlossy | Mapping required | |
| Garnishments and Deductions | Not supportedlossy | Mapping required | |
| Performance Review Records | Performance Reviews1:1 | Mapping required | |
| Learning and Training Records | Limited support1:1 | Mapping required | |
| ACA Compliance Data | Not supportedlossy | Mapping required | |
| Employee Files and Documents | Employee Files1:1 | 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.
EPAY HCM gotchas
No public API means migration extraction is vendor-assisted
Historical payroll and tax filing data require special handling
Benefits carrier re-enrollment is often required at destination
Employee count directly affects billing — imports increase costs
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
Scoping and EPAY export coordination
We audit the EPAY source environment: employee headcount (active, inactive, terminated), compensation history periods, active benefits enrollments, active garnishment orders, time-off accrual balances, and any custom fields or objects in use. Because EPAY has no public API, we submit a formal export request to EPAY's customer success team and agree on a delivery timeline. We validate the export record counts against our scoping estimates before accepting the export file. If the export is delayed, the project timeline extends accordingly.
BambooHR destination setup and schema preparation
We configure the BambooHR destination: create custom fields for EPAY custom properties (cost center assignments, year-to-date payroll totals, original hire source), set up Time Off policies with opening balances migrated from EPAY accrual records, configure the Benefits module with the customer's carrier integrations, and enable the Performance Reviews module if the customer subscribes to that tier. We use the BambooHR API (GET /v1/meta/fields) to enumerate all available and custom fields before mapping.
Transformation and compensation timeline construction
We transform EPAY exports into BambooHR-compatible format. The highest-complexity transform is the compensation timeline: EPAY stores multiple effective-dated compensation changes per employee; BambooHR supports one active compensation record at a time. We create a sequenced compensation history with effectiveDate stamps and separate bonus/payType entries. We split employee records into active and inactive, apply the status mapping (terminated employees with terminationDate become inactive in BambooHR), and resolve any duplicate email addresses that would cause import conflicts.
Garnishment and deduction handoff preparation
We compile every active garnishment order and voluntary deduction code into a structured handoff document with employee name, deduction type, amount or percentage, start date, and current balance. This document is reviewed by the customer's payroll team before cutover. We do not import garnishments into BambooHR because no import path exists; the document serves as the payroll team's manual re-entry checklist. We flag the cutover date by which all garnishments must be re-entered to avoid a missed payroll.
Staged import and validation
We run a staged import into the customer's BambooHR environment in dependency order: Employees first (with status and custom fields), then Compensation (with effectiveDate sequenced), then Benefits (as enrollment records), then Time Off policies (with accrual opening balances), then Performance Reviews, then Employee Files. Each phase emits a row-count reconciliation report. We validate 25 to 50 spot-check records against the EPAY source for field-level accuracy. Any mapping corrections are applied before the next phase begins.
Cutover, delta sync, and manual handoff
We freeze EPAY writes during cutover, run a final delta migration of any records modified during the migration window (new hires, compensation changes, terminations), then declare BambooHR the system of record. We deliver the garnishment handoff document, the job costing reference CSV, the ACA compliance archive, and the training history export to the customer's HR and payroll teams. We do not rebuild EPAY workflows, scheduling rules, or time-tracking configurations in BambooHR; these are documented separately for the customer's admin to reconstruct or to evaluate as separate implementation projects.
Platform deep dives
EPAY HCM
Source
Strengths
Weaknesses
BambooHR
Destination
Strengths
Weaknesses
Complexity grading
Standard HRMS migration. All 7 core objects map 1:1 between EPAY HCM and BambooHR.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across EPAY HCM and BambooHR.
Object compatibility
All 7 core objects map 1:1 between EPAY HCM and BambooHR.
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
EPAY HCM: Not publicly documented..
Data volume sensitivity
EPAY HCM 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
Pick a category, then your source and destination platforms.
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FAQ
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