HRMS migration
Field-level mapping, validation, and rollback between Sympa and BambooHR. We move data and schema; workflows are rebuilt natively in BambooHR.
Sympa
Source
BambooHR
Destination
Compatibility
5 of 10
objects map 1:1 between Sympa and BambooHR.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Moving from Sympa to BambooHR is a migration from a multi-country enterprise HRIS to a mid-market platform built for small and mid-sized teams. Sympa excels at global compliance, multi-country payroll, and deep organizational hierarchies; BambooHR excels at ease of use, transparent pricing, and a well-documented REST API. We handle the schema reconciliation between Sympa's org units, effective-dated compensation records, and custom fields and BambooHR's flatter employee data model, preserving employment dates, job titles, compensation snapshots, and document attachments where the destination supports them. We flag time-off balance differences (Sympa tracks accrual snapshots; BambooHR uses policy-based accrual configuration) and deliver a written map of any custom fields that require manual reconfiguration or manual data entry post-migration. Workflows, automations, and payroll integrations do not migrate; these are documented separately for the customer's HR admin to rebuild or reconfigure in BambooHR.
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 Sympa 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.
Sympa
Employee
BambooHR
Employee
1:1Sympa Employee records map to BambooHR Employee. We map firstName, lastName, workEmail, jobTitle, department, hireDate, terminationDate, supervisorId, employmentStatus, and mobilePhone to BambooHR's equivalent fields. National ID, date of birth, and address fields map directly where present. We flag employees with missing required fields (workEmail, firstName, lastName) during pre-migration data profiling so the customer can clean or suppress before import. TerminationDate from Sympa maps to BambooHR's terminationDate field, and we set employmentStatus to Terminated for records with a populated terminationDate.
Sympa
Organizational Structure
BambooHR
Department and Supervisor
lossySympa stores org units as parent-child hierarchies across countries and legal entities. BambooHR uses a flat department field plus a supervisor lookup on each Employee record. We extract the deepest-level org unit name from Sympa's hierarchy and map it to BambooHR department. If multiple levels are meaningful, we join them into a single string (e.g., 'Engineering - Frontend') or configure BambooHR's division field as a secondary level. Any Sympa org unit that maps to no BambooHR equivalent is flagged for manual review during scoping.
Sympa
Compensation History
BambooHR
Pay Rate and Custom Fields
lossySympa stores salary, bonus, and equity as effective-dated entries per employee with full historical timelines. BambooHR has a single payRate field plus optional custom fields; it does not have a native compensation history object. We extract the most recent compensation entry from Sympa and map it to BambooHR's payRate. For compensation history, we pre-create custom date and currency fields in BambooHR (e.g., salary_effective_date, salary_amount, bonus_amount) and map the full effective-dated timeline as multiple rows in those custom fields, or advise the customer to preserve the full history as an attached PDF report.
Sympa
Documents
BambooHR
Employee Files
1:1Sympa attaches employee documents (contracts, certifications, compliance records) to Employee records. BambooHR supports employee file attachments. We migrate documents as files, mapping them to the corresponding BambooHR Employee's Files tab. We apply BambooHR's supported file format constraints (PDF, images, common office formats) and flag any binary or unsupported formats for manual handling. Document metadata (document type, issue date, expiry date) is preserved in the file description field or a custom field if the customer has configured one.
Sympa
Time-Off Balances
BambooHR
Time Off
lossySympa tracks accrued time-off balances per employee per leave type as snapshot values at a point in time. BambooHR uses a policy-based time-off model with accrual configuration and optional balance import. We export Sympa's current balance snapshot as a CSV during pre-migration profiling and advise the customer on whether to import balances directly (if BambooHR's accrual policy supports it) or reconfigure accruals from scratch. We do not migrate accrual calculation rules because BambooHR's accrual engine handles these natively. The customer configures matching leave types in BambooHR's Time Off settings before balance import.
Sympa
Custom Fields
BambooHR
Custom Fields
1:1Sympa allows tenant-specific custom fields on Employee and related objects without schema governance controls. BambooHR supports custom fields via the Custom Fields tab in Settings with a defined set of types (text, number, date, dropdown, checkbox, etc.). We perform a pre-migration custom field audit during scoping, export the full Sympa custom field inventory, cross-reference each against BambooHR's supported types, and map where a direct equivalent exists. Fields with no BambooHR equivalent are flagged as requiring a manual reconfiguration step or a custom field setup in BambooHR before migration. This audit is customer-specific and cannot be hardcoded because custom field names and values vary per Sympa tenant.
Sympa
Employment History
BambooHR
Job Title, Department, and Custom Fields
lossySympa records job title changes, department transfers, and manager updates as effective-dated events per Employee with a full chronological timeline. BambooHR stores a single current jobTitle, department, and supervisor on each Employee record. We extract the most recent title and department from Sympa's employment history and map it to BambooHR's current field values. If the customer requires the full history, we create custom date-stamped fields (e.g., previous_title, previous_department, effective_date) and map the historical sequence as multiple rows, or preserve the full timeline as a linked document.
Sympa
Users and Roles
BambooHR
Employee with Access Level
1:1Sympa assigns roles and permissions to Users who may not map 1:1 to Employee records. BambooHR ties system access directly to Employee records with permission levels (Employee, Manager, Admin). We distinguish active system users from purely administrative employee records in Sympa. Active users with a corresponding Sympa Employee record are mapped to BambooHR Employee records with an access level assigned. Users without an Employee record are provisioned as BambooHR employees with the appropriate access level. We resolve by email match and flag any duplicate email addresses before import.
Sympa
Payroll Integration Configuration
BambooHR
Payroll
1:1Sympa integrates with third-party payroll providers across its integration marketplace. BambooHR integrates with a different set of payroll providers (Gusto, ADP, Paychex, OnPay). We do not migrate payroll integration configurations as these are provider-specific and require fresh setup in BambooHR. We document the current Sympa payroll provider and integration type in the migration inventory so the customer's HR admin can configure the equivalent in BambooHR post-migration.
Sympa
Time-Off Policies
BambooHR
Time Off Policies
lossySympa maintains leave type configurations (PTO, sick leave, parental leave) with country-specific rules. BambooHR requires manual setup of Time Off policies with accrual rates, carryover rules, and eligibility criteria. We export the Sympa leave type inventory during scoping, document each policy's type and accrual rule, and deliver a written policy mapping table for the customer's HR admin to reconfigure in BambooHR's Time Off settings. We do not migrate policy rules as they are configuration rather than data.
| Sympa | BambooHR | Compatibility | |
|---|---|---|---|
| Employee | Employee1:1 | Fully supported | |
| Organizational Structure | Department and Supervisorlossy | Mapping required | |
| Compensation History | Pay Rate and Custom Fieldslossy | Mapping required | |
| Documents | Employee Files1:1 | Mapping required | |
| Time-Off Balances | Time Offlossy | Mapping required | |
| Custom Fields | Custom Fields1:1 | Mapping required | |
| Employment History | Job Title, Department, and Custom Fieldslossy | Mapping required | |
| Users and Roles | Employee with Access Level1:1 | Mapping required | |
| Payroll Integration Configuration | Payroll1:1 | Fully supported | |
| Time-Off Policies | Time Off Policieslossy | 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.
Sympa gotchas
No public API documentation or developer portal
Custom fields require manual audit before migration
Time-off balance migration depends on destination accrual rules
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 Sympa API schema enumeration
We request Sympa API credentials and perform a live schema discovery call against the customer's tenant to enumerate available objects, fields, and custom field inventories. We export the Sympa employee list, org unit structure, compensation history records, time-off balances, document inventory, and custom field list. We confirm API access scope with the customer (some Sympa contracts include read-only API access only) and identify any objects or fields that require alternative export methods (CSV, direct database read) if API access is constrained. We pair this with a BambooHR account setup confirmation and meta/fields fetch to enumerate BambooHR field IDs for custom field mapping.
Custom field audit and field mapping design
We cross-reference the Sympa custom field inventory (names, data types, picklist values) against BambooHR's supported custom field types (text, number, date, dropdown, checkbox, etc.). We flag any Sympa custom fields that lack a direct BambooHR equivalent and propose a reconfiguration approach (new BambooHR custom field, manual re-entry, or document preservation). We design the full field mapping specification including transformation rules for date formats, multi-select picklists, and numeric precision, and we confirm BambooHR field IDs for every custom field that will be written via the BambooHR API.
BambooHR custom field and time-off policy setup
Before any employee data is written to BambooHR, we pre-create all required custom fields via BambooHR's Settings > Custom Fields interface using the field IDs resolved in step one. If the customer opts to import time-off balances, we confirm that BambooHR Time Off policies are configured with matching leave types and advise the customer to set up accrual policies before the migration window. We provision the migration service account in BambooHR with the correct permissions for API access and confirm field-level read/write access before proceeding.
Sandbox migration and reconciliation
We run a full migration into the customer's BambooHR environment using a representative subset (or full dataset if the customer approves) to validate the field mapping, identify data quality issues, and confirm reconciliation counts. We check that employee records appear in BambooHR with correct names, job titles, departments, hire dates, and termination dates. We verify that custom field values are written to the correct BambooHR field IDs. The customer spot-checks 20-30 records against the Sympa source data and signs off the mapping before production migration begins.
Production migration in dependency order
We migrate in record-dependency order: employees first (with employment status resolved for active versus terminated), then organizational fields (department, supervisor), then compensation history (to custom fields or document attachment), then time-off balance snapshot (to BambooHR Time Off or CSV export for manual re-entry), then documents (file attachments), then any remaining custom fields. We apply BambooHR's rate limit of approximately 100 requests per minute with exponential backoff on 503 responses, and we batch records in groups of 50-100 for the BambooHR employee import API.
Cutover, validation, and handoff
We place a write-freeze on Sympa during the cutover window, run a final delta migration of any records modified during the migration, and confirm the employee record count matches between Sympa and BambooHR. We deliver a migration inventory document covering the time-off balance CSV (for manual import if applicable), the Sympa payroll integration documentation for the customer's admin to reconfigure in BambooHR, and the list of any Sympa custom fields that could not be migrated and require manual reconfiguration. We provide a one-week hypercare window to resolve post-migration reconciliation issues raised by the HR team.
Platform deep dives
Sympa
Source
Strengths
Weaknesses
BambooHR
Destination
Strengths
Weaknesses
Complexity grading
Standard HRMS migration. 2 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 Sympa and BambooHR.
Object compatibility
2 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
Sympa: Not publicly documented in the SympaHR Integration API documentation — confirmed during scoping..
Data volume sensitivity
Sympa exposes a bulk API — large-volume migrations stream efficiently.
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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