HRMS migration

Migrate from greytHR to BambooHR

Field-level mapping, validation, and rollback between greytHR and BambooHR. We move data and schema; workflows are rebuilt natively in BambooHR.

greytHR logo

greytHR

Source

BambooHR

Destination

BambooHR logo

Compatibility

90%

9 of 10

objects map 1:1 between greytHR and BambooHR.

Complexity

BStandard

Timeline

2-4 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

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.

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

greytHR logo

greytHR

What's pushing teams away

  • Performance degradation at scale — multiple reviewers on G2 and Capterra report slow page loads and frequent manual refreshes required to complete routine operations.
  • Mid-to-large companies outgrow the platform when they need advanced workforce analytics, multi-country payroll, or deep integration with ERP systems that greytHR does not natively support.
  • Attendance sync reliability issues surface in reviews: swipe data occasionally fails to register, requiring manual regularization steps that erode trust in the system.
  • Switching mid-year creates anxiety around statutory filings (PF, ESI) — companies worry that migrating in the middle of a compliance cycle will cause government-filing errors or penalties.

Choosing

BambooHR logo

BambooHR

What's pulling them in

  • Lowest friction entry point for SMBs moving off spreadsheets — intuitive interface means most teams are functional within days, not weeks.
  • Consolidation value: BambooHR merges ATS, onboarding, HR records, time-off, and payroll into a single pane of glass that employees never need to leave.
  • Volume discounts applied automatically by headcount, so pricing scales predictably as the company grows without renewal negotiations.
  • BambooHR reports most customers go live in four to six weeks, making it a realistic commitment for under-resourced HR teams.
  • Award-winning Support Heroes cited frequently in reviews — responsive human support after implementation is a differentiator.

Object mapping

How greytHR objects map to BambooHR

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

maps to

BambooHR

Employee

1:1
Fully supported

greytHR 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

maps to

BambooHR

Job Information tab

1:1
Mapping required

greytHR 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

maps to

BambooHR

Time Off

1:1
Fully supported

Leave 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

maps to

BambooHR

Time Tracking (Time Clock or external integration)

1:1
Fully supported

greytHR 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

maps to

BambooHR

Compensation (salary structure fields)

1:1
Mapping required

Payslip 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

maps to

BambooHR

Files (Employee Documents tab)

1:1
Mapping required

greytHR 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

maps to

BambooHR

Employee custom fields or separate export file

1:1
Mapping required

greytHR 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

maps to

BambooHR

Users

1:1
Mapping required

greytHR 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)

maps to

BambooHR

Supplemental statutory data file

lossy
Fully supported

UAN, 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

maps to

BambooHR

Performance (with review cycles)

1:1
Mapping required

greytHR 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.

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.

greytHR logo

greytHR gotchas

High

Statutory field data quality directly impacts government filings

Medium

Attendance regularization status does not always reflect true swipe data

Medium

Leave carry-forward and encashment rules are policy-specific, not record-specific

Medium

API lacks documented bulk export endpoint for historical payroll data

BambooHR logo

BambooHR gotchas

High

Undocumented API rate limits can trigger 503 errors

High

Per-employee pricing model requires active record count verification

Medium

API credentials must be sent on every request to avoid extra round trips

Medium

Custom field schema varies per account and requires manual inventory

Low

Document and attachment exports are not covered by standard report exports

Pair-specific challenges

  • Indian statutory compliance fields have no BambooHR destination

    UAN, PF number, ESI number, and TDS section are structured fields in greytHR but have no equivalent in BambooHR's schema. BambooHR is designed for US and international HR without Indian government filing integration. We export all statutory data as-is in a structured file, but the customer must retain this file as the authoritative record for PF portal uploads, ESI filings, and PAN-linked reporting. Companies with ongoing Indian employees should plan to maintain statutory filing capability separately, either via a limited greytHR subscription, direct government portal access, or a compliance service provider.

  • Leave carry-forward and accrual rules must be manually rebuilt

    greytHR stores leave balances at a point in time and applies carry-forward rules defined in the leave policy. BambooHR uses its own Time Off policy engine with accrual rates, waiting periods, and carry-forward limits configured per policy. We migrate current balances as BambooHR balance overrides, but the accrual logic does not transfer. We document the greytHR leave policy settings during scoping and present them as a configuration checklist for the customer's BambooHR admin to enter manually before the first time-off request.

  • BambooHR cannot store Indian payroll formulas

    greytHR computes payroll with component-level formulas (basic, HRA, conveyance, special allowance, statutory deductions). BambooHR stores flat compensation amounts and pay frequency but does not run Indian payroll or support formula-driven salary structures. Payslip history migrates as a structured data file for audit purposes, but payroll recomputation must happen outside BambooHR. Companies migrating from greytHR's payroll module should plan to run their first BambooHR-supported payroll cycle manually or through an external payroll service.

  • greytHR API lacks documented bulk export and rate limits

    The greytHR public API v2 exposes employee, leave, attendance, and document endpoints, but does not document a bulk export method or rate limits. Based on Celigo connector listings and community reports, we implement throttled sequential reads and resume-from-cursor logic to handle large employee bases. We also recommend a supplemental manual export of payroll reports and attendance summaries from the greytHR UI for audit completeness, because API-exported records may not capture all leave regularization states visible in the admin view.

  • BambooHR custom field limitations in integration contexts

    BambooHR integrations (documented in Tovuti, SGNL, and other integration guides) cannot pass fields in the Time Off, Benefits, Performance, and Onboarding tabs via API. Fields requiring dropdown-list values must exactly match BambooHR's possible options or the import will fail silently or reject the record. We validate picklist values against BambooHR's allowed lists during the transform phase and flag any mismatches for manual resolution before import.

Migration approach

Six steps for a successful greytHR to BambooHR data migration

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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

Context on both ends of the pair

greytHR logo

greytHR

Source

Strengths

  • Covers the full Indian statutory stack (PF, ESI, TDS, state labor codes) within a single platform.
  • Per-employee pricing model is transparent and affordable for companies with 50–500 employees.
  • Employee Self Service mobile app lets workers handle leave, attendance, and payslips without HR intervention.
  • Reporting covers 150+ pre-built HR and payroll reports out of the box.
  • No long-term contract commitments — month-to-month subscription with annual option.

Weaknesses

  • API documentation is limited; public-facing API reference covers only core modules and does not document rate limits or bulk endpoints.
  • Performance degrades under larger employee counts; reviews report sluggish UI and frequent refresh requirements.
  • Lacks native multi-country payroll support, limiting use for companies expanding beyond India.
  • Advanced workforce analytics and predictive HR features lag behind enterprise platforms like Workday or SAP SuccessFactors.
BambooHR logo

BambooHR

Destination

Strengths

  • Single platform consolidating ATS, onboarding, HR records, payroll, and time-off reduces system sprawl for SMBs.
  • Fast implementation — BambooHR reports four to six weeks from kickoff to go-live for most customers.
  • Per-employee pricing with automatic volume discounts makes cost predictable as headcount grows.
  • Strong customer support reputation (Support Heroes) cited consistently across G2, Capterra, and direct testimonials.
  • Well-documented API with UTF-8 encoding, clear field types, and HTTPS-only access.

Weaknesses

  • Mobile application is significantly limited compared to the desktop experience, frustrating remote and field workers.
  • Companies above 150–200 employees frequently outgrow the platform's feature depth and customization surface.
  • Limited advanced reporting and analytics compared to enterprise HR platforms — custom report building is the ceiling.
  • PTO and profile customization are pain points — non-standard accrual policies and complex org structures require workarounds.
  • Document management and attachment handling lack the granularity of dedicated document-centric HR systems.

Complexity grading

How hard is this migration?

Standard HRMS migration. All 7 core objects map 1:1 between greytHR and BambooHR.

B

Overall complexity

Standard migration

Derived from compatibility, mapping clarity, API constraints, and data volume across greytHR and BambooHR.

  • Object compatibility

    A

    All 7 core objects map 1:1 between greytHR and BambooHR.

  • 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

    greytHR: Not publicly documented.

  • Data volume sensitivity

    B

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

Estimator

Estimate your greytHR to BambooHR 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 greytHR to BambooHR data migrations

Answers to the questions buyers ask most during greytHR to BambooHR migration scoping. Not seeing yours? Book a call.

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Migrations under 200 employees with clean data and no document binary migration complete in two to four weeks. Migrations over 200 employees with full attendance history, document binaries, and multiple leave policy types run four to eight weeks because of throttled API reads over the undocumented greytHR endpoints, manual leave policy verification, and the statutory data extraction and compliance handoff planning. Timeline also depends on how quickly the customer's BambooHR admin completes the Time Off policy configuration using the checklist we deliver during scoping.

Adjacent paths

Related migrations to explore

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