HRMS migration
Field-level mapping, validation, and rollback between greytHR and BambooHR. We move data and schema; workflows are rebuilt natively in BambooHR.
greytHR
Source
BambooHR
Destination
Compatibility
9 of 10
objects map 1:1 between greytHR and BambooHR.
Complexity
BStandard
Timeline
2-4 weeks
Overview
Migrating from greytHR to BambooHR is primarily a data consolidation move for companies that have expanded outside India or are planning a US-based workforce and find greytHR's performance ceiling and API limitations increasingly restrictive. The structural difference that shapes every migration is that greytHR is built around Indian statutory compliance (PF, ESI, TDS, state labor codes) while BambooHR is a US-centric HRIS with no native support for Indian government filing. We export every statutory field as-is and flag it as a manual handoff because BambooHR cannot store UAN, PF numbers, or ESI numbers in a way that feeds into any compliance filing system. Leave balances migrate as point-in-time records, but carry-forward and accrual rules are policy-based in greytHR and must be manually reconfigured in BambooHR's Time Off policy editor. We do not migrate greytHR workflows, payroll formulas, or statutory filing configurations because these are structural platform features with no direct destination equivalent. We deliver a written inventory of each for your admin to rebuild or re-enter post-migration.
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 greytHR 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.
greytHR
Employee
BambooHR
Employee
1:1greytHR Employee records map to BambooHR Employee. The core demographic fields (first name, last name, date of birth, gender, personal email, phone, address) map directly. Indian statutory fields (UAN, PF number, ESI number, PAN) have no BambooHR equivalent — we export them as-is into a supplemental statutory data file that the customer retains for PF/ESI government portal re-entry. The employee's employment status (active, inactive, exited) maps to BambooHR's employment status field.
greytHR
Position History
BambooHR
Job Information tab
1:1greytHR stores department, designation, grade, and location changes with effective dates as a position history timeline. BambooHR stores a single current job information snapshot (job title, department, division, location, employment status, hire date). We map the most recent position record to BambooHR's current job fields and flag the historical position timeline as a data file for manual reference. Companies that track job history for compliance or audit purposes should configure BambooHR's custom fields for prior titles before migration.
greytHR
Leave Management
BambooHR
Time Off
1:1Leave entitlements, accrual balances, and usage history export from greytHR as point-in-time balances at the migration cutoff date. BambooHR's Time Off module uses accrual policies to generate balances automatically. We migrate current leave balances as initial Time Off balance overrides, but the accrual rules (monthly accrual rate, carry-forward limits, encashment eligibility) must be manually reconfigured in BambooHR's Time Off policy editor. We document the greytHR leave policy settings during scoping and hand them to the customer as a policy configuration checklist.
greytHR
Attendance Records
BambooHR
Time Tracking (Time Clock or external integration)
1:1greytHR swipe logs, shift schedules, and overtime records export with timestamps and regularization status. BambooHR does not have a native swipe-device attendance system; it offers a Time Clock add-on and a Time Tracking module for US-based timekeeping. We migrate attendance records as a historical data file for audit reference, and the customer decides whether to use BambooHR Time Clock, an existing third-party attendance tool, or accept that attendance tracking will be handled outside BambooHR post-migration.
greytHR
Payroll Runs
BambooHR
Compensation (salary structure fields)
1:1Payslip data (gross salary, deductions, net pay, component breakdown) exports from greytHR. BambooHR stores compensation as annual salary, pay frequency, and optional benefit deductions — it does not run Indian payroll. We map greytHR salary components to BambooHR's compensation fields and preserve the payslip history as a downloadable file for audit trail purposes. The underlying salary computation rules (formula-based components like HRA, conveyance, special allowance) do not migrate because BambooHR does not support formula-driven payroll.
greytHR
Documents
BambooHR
Files (Employee Documents tab)
1:1greytHR employee documents (offer letters, ID proofs, contracts, joining letters) export as binary files with metadata. BambooHR stores documents in the Files tab on each employee record. We export document binaries from greytHR's document module where API access is granted and attach them to the corresponding BambooHR employee record. Documents stored outside the API-accessible document module require a manual export from the greytHR UI.
greytHR
Claims and Expense Records
BambooHR
Employee custom fields or separate export file
1:1greytHR expense claims with approval status and reimbursement amounts export per employee. BambooHR does not have a native expense management module. We export claim records as a structured data file. If BambooHR custom fields are configured for expense tracking, we map the data accordingly; otherwise, the customer may need a separate expense management tool post-migration.
greytHR
Users and Roles
BambooHR
Users
1:1greytHR system users (HR admins, managers, employees) map to BambooHR users by email match. Role-based access and permission structures do not export cleanly because greytHR and BambooHR permission models are structurally different. We export the user list and their greytHR role assignments as a reference file for the customer's admin to reconfigure access in BambooHR.
greytHR
Statutory Compliance (PF/ESI/TDS)
BambooHR
Supplemental statutory data file
lossyUAN, PF numbers, ESI numbers, PAN, and TDS section are stored as structured fields on greytHR Employee records. BambooHR has no fields for these identifiers and no integration with Indian government portals. We preserve all statutory field values exactly as-is in a structured export file that the customer retains. For ongoing compliance, the customer should either maintain a greytHR lite subscription for statutory filing, use a government portal directly, or engage a compliance service provider.
greytHR
Performance Reviews
BambooHR
Performance (with review cycles)
1:1greytHR PMS review cycles, ratings, goals, and feedback text migrate to BambooHR Performance. Completed reviews migrate as historical records. In-progress review cycles migrate as-is with a status flag; finalization must occur in BambooHR after migration. BambooHR's Performance module uses custom review cycles, 360 feedback, and goal tracking — the mapping preserves rating scores and feedback text, but the review cycle configuration must be manually aligned.
| greytHR | BambooHR | Compatibility | |
|---|---|---|---|
| Employee | Employee1:1 | Fully supported | |
| Position History | Job Information tab1:1 | Mapping required | |
| Leave Management | Time Off1:1 | Fully supported | |
| Attendance Records | Time Tracking (Time Clock or external integration)1:1 | Fully supported | |
| Payroll Runs | Compensation (salary structure fields)1:1 | Mapping required | |
| Documents | Files (Employee Documents tab)1:1 | Mapping required | |
| Claims and Expense Records | Employee custom fields or separate export file1:1 | Mapping required | |
| Users and Roles | Users1:1 | Mapping required | |
| Statutory Compliance (PF/ESI/TDS) | Supplemental statutory data filelossy | Fully supported | |
| Performance Reviews | Performance (with review cycles)1:1 | 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.
greytHR gotchas
Statutory field data quality directly impacts government filings
Attendance regularization status does not always reflect true swipe data
Leave carry-forward and encashment rules are policy-specific, not record-specific
API lacks documented bulk export endpoint for historical payroll data
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 greytHR tenant across employee count, active and inactive records, leave policy types and their accrual settings, attendance history volume (swipe records vs summary records), document module access and file sizes, statutory field completeness (UAN, PF, ESI, PAN coverage percentage), payroll run history depth, and any custom fields or picklist values in use. We also identify employees with conflicting or missing statutory data (a known greytHR community issue where old imports introduce malformed PAN numbers or duplicate UANs). The audit output is a data quality report and a written migration scope.
Leave policy inventory and accrual documentation
We extract all greytHR leave policy settings (accrual rate, accrual frequency, carry-forward limit, encashment eligibility, waiting period) and document them as a BambooHR Time Off policy configuration checklist. We capture current employee-level leave balances as of the migration cutoff date and prepare them as BambooHR balance override records. The customer uses this checklist to configure BambooHR Time Off policies before the production migration, so that new accruals run correctly from day one.
Statutory data extraction and compliance handoff planning
We export all statutory compliance fields (UAN, PF number, ESI number, PAN, TDS section) as a standalone structured export. This file is the customer's authoritative record for ongoing government portal filings. We flag any records with malformed or missing statutory identifiers (duplicate UANs, invalid PAN format, absent ESI numbers) in the data audit report so the customer can correct them before migration or document them as known data quality issues.
Employee and compensation migration
We migrate greytHR Employees to BambooHR Employees in dependency order: core demographic fields first, then job information, then compensation (annual salary, pay frequency, benefits deductions). We resolve each greytHR user to a BambooHR user by email match and flag any users without a matching BambooHR account for the customer's admin to provision. Custom fields and picklist values are validated against BambooHR's allowed lists before import. Leave balance overrides are written after the main employee migration completes.
Document and attendance data export
We export employee documents (offer letters, contracts, ID proofs) from greytHR's document module where API access is granted, map them to the corresponding BambooHR employee record, and attach them as files. Attendance swipe logs and regularization records are exported as a structured data file for audit reference. The customer decides whether to activate BambooHR Time Clock for ongoing attendance tracking or continue using a third-party attendance tool.
Cutover, validation, and policy handoff
We freeze greytHR writes during cutover, run a final delta migration of any records modified during the migration window, then mark BambooHR as the system of record. We deliver the statutory data export file, the leave policy configuration checklist, the user-role mapping reference, and the attendance history file. We do not rebuild greytHR workflows or payroll formulas in BambooHR; these are documented as separate items for the customer's HR admin to configure. We support a three-day post-cutover window to resolve reconciliation issues raised during initial BambooHR use.
Platform deep dives
greytHR
Source
Strengths
Weaknesses
BambooHR
Destination
Strengths
Weaknesses
Complexity grading
Standard HRMS migration. All 7 core objects map 1:1 between greytHR and BambooHR.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across greytHR and BambooHR.
Object compatibility
All 7 core objects map 1:1 between greytHR 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
greytHR: Not publicly documented.
Data volume sensitivity
greytHR 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.
Category
FAQ
Answers to the questions buyers ask most during greytHR to BambooHR migration scoping. Not seeing yours? Book a call.
Walk through your greytHR to BambooHR migration with a real engineer — 30 minutes, free, written quote within 24 hours.
Book a free 30 minute consultationAdjacent paths
Other ways to leave greytHR
Other ways to arrive at BambooHR
Ready when you are
Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.