HRMS migration
Field-level mapping, validation, and rollback between PeopleStrong and Bullhorn ATS & CRM. We move data and schema; workflows are rebuilt natively in Bullhorn ATS & CRM.
PeopleStrong
Source
Bullhorn ATS & CRM
Destination
Compatibility
6 of 14
objects map 1:1 between PeopleStrong and Bullhorn ATS & CRM.
Complexity
BStandard
Timeline
2-4 weeks
Overview
Migrating from PeopleStrong to Bullhorn is a platform-category migration, not a like-for-like swap. PeopleStrong is a full-lifecycle HCM covering hire through exit, including payroll, attendance, leave, performance reviews, and expense claims. Bullhorn is a recruitment ATS and CRM built for staffing agencies and in-house recruiters managing candidates, job orders, and placements. The overlap is limited to the Talent Acquisition module — candidate records, job applications, interview scores, and offer letters migrate directly. Payroll history, attendance logs, leave balances, performance reviews, reimbursements, and the full HR employee record do not have Bullhorn equivalents and are flagged as out-of-scope before migration begins. We use Bullhorn's REST API with bulk import endpoints for candidate and job data, handle resume file attachment retrieval separately from record metadata, and deliver a written inventory of PeopleStrong workflows and approval chains requiring manual rebuild in Bullhorn.
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 PeopleStrong object lands in Bullhorn ATS & CRM, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
PeopleStrong
Employee
Bullhorn ATS & CRM
Candidate or Contact (context-dependent)
lossyPeopleStrong Employee records do not map directly to a single Bullhorn entity. Active candidates with open applications migrate to Bullhorn Candidate. Historical employees with no active job order relationship migrate to Bullhorn Contact or are excluded based on the customer's scope decision during scoping. We separate the Employee export into candidate pool and contact pool using the employee's last application status and department assignment. Personal details, employment dates, and manager assignment migrate as standard fields on the target entity; full HR details without Bullhorn equivalents (probation status, compensation band, grade) are flagged as out-of-scope.
PeopleStrong
Talent Acquisition / Candidates
Bullhorn ATS & CRM
Candidate
1:1PeopleStrong Candidate records (from the Talent Acquisition module) map directly to Bullhorn Candidate. We extract resume data, stage history, interview scores, offer letter metadata, and recruiter assignments. Resume files retrieve separately via PeopleStrong's file API and attach to Bullhorn Candidate records via the Bullhorn resume upload endpoint. Candidate ID from PeopleStrong is preserved in a custom field ps_candidate_id__c for audit and reconciliation.
PeopleStrong
Job Application
Bullhorn ATS & CRM
JobSubmission (or Opportunity for agency placements)
1:1PeopleStrong job applications with stage, submission date, and status map to Bullhorn JobSubmission. For staffing agencies with placement records, the application converts to a Bullhorn Opportunity with the Candidate linked. We preserve stage history, submission timestamps, and rejection reasons where available.
PeopleStrong
Job / Requisition
Bullhorn ATS & CRM
JobOrder
1:1PeopleStrong job requisitions map to Bullhorn JobOrder. Job title, description, location, employment type (full-time, contract, part-time), and salary fields map to standard Bullhorn JobOrder fields. Custom requisition fields from PeopleStrong migrate to Bullhorn Custom Fields on JobOrder or to a Custom Object if the volume requires structured storage. Active job status maps to Bullhorn JobOrder status values.
PeopleStrong
Departments and Locations
Bullhorn ATS & CRM
Business Sector (JobOrder) or Corporate Department (for multi-office)
1:1PeopleStrong departments and cost center hierarchies migrate to Bullhorn BusinessSector on JobOrder for placement categorization. Multi-office organizations can use Bullhorn Corporate entities for location-level reporting. We preserve the full department hierarchy as a string value for display and reporting.
PeopleStrong
Job Titles and Grades
Bullhorn ATS & CRM
Category (JobOrder)
lossyPeopleStrong job title and grade structures migrate as Bullhorn Category values on JobOrder. We create Category records from the PeopleStrong title list and map each JobOrder to the corresponding Category during import. Grade band information without a Bullhorn equivalent is stored as a custom text field or excluded based on scope decision.
PeopleStrong
Users and Roles
Bullhorn ATS & CRM
User
1:1PeopleStrong system users with active Bullhorn role equivalents migrate as Bullhorn User records. We match by email address. Any PeopleStrong user without a corresponding Bullhorn license is held in a reconciliation queue; the customer's Bullhorn admin provisions the license before migration continues. Role assignments (recruiter, hiring manager, approver) map to Bullhorn User permissions and team assignments.
PeopleStrong
Documents (Offer Letters, Contracts)
Bullhorn ATS & CRM
ContentDocument (linked to Candidate or JobSubmission)
1:1PeopleStrong employee documents (offer letters, contracts, ID proofs) attached to candidate records migrate as Bullhorn ContentDocument linked via ContentDocumentLink to the corresponding Candidate. Document migration runs as a secondary batch after the primary record phase to avoid API timeout errors on large file volumes. We preserve original filenames and MIME types.
PeopleStrong
Payroll History
Bullhorn ATS & CRM
Not Migrated (out of scope)
lossyPayroll records in PeopleStrong (salary components, pay periods, deductions, payslips) have no Bullhorn equivalent. Bullhorn is a recruitment ATS and CRM, not a payroll platform. We flag payroll history as out-of-scope during scoping, document the PeopleStrong payroll data structure, and recommend a separate payroll migration to a dedicated payroll platform (Rippling, Gusto, ADP, or the customer's existing payroll system) as a parallel engagement.
PeopleStrong
Attendance Records
Bullhorn ATS & CRM
Not Migrated (out of scope)
lossyClock-in/out timestamps, regularization requests, and shift assignments stored in PeopleStrong have no Bullhorn equivalent. Bullhorn's data model does not include attendance or time-tracking objects. We exclude attendance records from the migration scope and document the PeopleStrong attendance schema for the customer's HR admin to assess against a standalone time-tracking solution post-migration.
PeopleStrong
Leave Balances and Requests
Bullhorn ATS & CRM
Not Migrated (out of scope)
lossyLeave accrual balances, request records, and approval history in PeopleStrong have no Bullhorn equivalent. Bullhorn does not store HR leave management data. We flag leave management as out-of-scope and document the leave type structure and balance schema from PeopleStrong so the customer's HR admin can configure leave tracking in a dedicated HR platform post-migration.
PeopleStrong
Performance Reviews
Bullhorn ATS & CRM
Not Migrated (out of scope)
lossyReview cycles, ratings, and goals from PeopleStrong's Performance Management module do not map to Bullhorn. Bullhorn's standard ATS data model includes placement feedback fields but not structured performance review workflows. If the customer requires performance tracking in Bullhorn, we scope this as a custom object with fields configured per Bullhorn Growth or Enterprise edition limits (10 custom objects per entity, 55 fields each). The Performance Management module must be active in the customer's PeopleStrong subscription for these records to exist.
PeopleStrong
Reimbursements and Claims
Bullhorn ATS & CRM
Not Migrated (out of scope)
lossyExpense claims with line-item details, approval status, and settlement records are PeopleStrong HR data with no Bullhorn equivalent. Bullhorn does not handle expense management or employee reimbursements. We exclude these records from migration scope and document the claim structure for the customer's HR admin to assess against a dedicated expense management tool.
PeopleStrong
Custom Fields
Bullhorn ATS & CRM
Custom Fields or Custom Objects
lossyPeopleStrong organization-level custom fields on employee and candidate records vary by tenant and are not consistently exposed via the public API. We perform a schema discovery phase during scoping to enumerate all active custom fields and their data types, then map each to either Bullhorn standard custom fields or Bullhorn Custom Objects based on volume and complexity. Bullhorn Growth and Enterprise editions support up to 10 Custom Objects per entity with 55 fields each; Bullhorn ATS supports 2 Custom Objects per entity.
| PeopleStrong | Bullhorn ATS & CRM | Compatibility | |
|---|---|---|---|
| Employee | Candidate or Contact (context-dependent)lossy | Fully supported | |
| Talent Acquisition / Candidates | Candidate1:1 | Mapping required | |
| Job Application | JobSubmission (or Opportunity for agency placements)1:1 | Fully supported | |
| Job / Requisition | JobOrder1:1 | Fully supported | |
| Departments and Locations | Business Sector (JobOrder) or Corporate Department (for multi-office)1:1 | Fully supported | |
| Job Titles and Grades | Category (JobOrder)lossy | Fully supported | |
| Users and Roles | User1:1 | Mapping required | |
| Documents (Offer Letters, Contracts) | ContentDocument (linked to Candidate or JobSubmission)1:1 | Fully supported | |
| Payroll History | Not Migrated (out of scope)lossy | Mapping required | |
| Attendance Records | Not Migrated (out of scope)lossy | Mapping required | |
| Leave Balances and Requests | Not Migrated (out of scope)lossy | Mapping required | |
| Performance Reviews | Not Migrated (out of scope)lossy | Mapping required | |
| Reimbursements and Claims | Not Migrated (out of scope)lossy | Mapping required | |
| Custom Fields | Custom Fields or Custom Objectslossy | 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.
PeopleStrong gotchas
Per-module subscription creates partial data availability
Payroll data spans payrun cycles requiring careful date-range scoping
Custom field schemas vary by organization and are not consistently API-accessible
Document attachments require separate file-level API retrieval after record export
Bullhorn ATS & CRM gotchas
ATS Growth edition has no API access
Attachments excluded from CSV bulk exports
Custom Object limits vary sharply by edition
Opportunity pipeline stages are recruitment-specific
Resume parse quality varies by document format
Pair-specific challenges
Migration approach
Discovery and module audit
We audit the customer's PeopleStrong instance for active modules (Core HR, Talent Acquisition, Performance Management, Payroll, Attendance, Leave, Reimbursements), record volumes by object, active custom fields, and API accessibility of each module. We cross-reference against Bullhorn's data model to identify the migration overlap (Candidate, JobOrder, JobSubmission, User, Document). We produce a written scope document listing in-scope and out-of-scope objects with record counts. Out-of-scope objects are documented for the customer's HR admin to assess against standalone solutions post-migration.
Schema mapping and Bullhorn edition check
We map each in-scope PeopleStrong object to its Bullhorn equivalent, including standard fields and any custom fields requiring Bullhorn Custom Field or Custom Object configuration. We verify that the customer's Bullhorn edition (Starter, Core, Pro, or Recruitment Cloud) supports the required custom object count. If the edition does not support the schema, we recommend an upgrade or schema compression before migration begins. Bullhorn Growth and Enterprise allow 10 custom objects per entity with 55 fields each; Bullhorn ATS allows 2.
Bullhorn sandbox validation
We provision a Bullhorn sandbox environment and run a full migration using production-like data volumes to validate the schema, mapping, and API response handling. The customer's recruiting operations lead reviews record counts, spot-checks 25-50 candidate and job records against the PeopleStrong source, and confirms that resume files attach correctly. Schema corrections and field mapping adjustments happen in sandbox, not in production. Bullhorn edition and custom object configuration deploy to sandbox first for validation.
User reconciliation and Bullhorn license provisioning
We extract every distinct PeopleStrong user referenced on candidate, job, and application records and match by email against the Bullhorn destination org's User table. Any PeopleStrong user without a matching Bullhorn User record enters a reconciliation queue. The customer's Bullhorn admin provisions licenses and creates User accounts for any missing users before the production migration phase begins. User lookup references are required for OwnerId on Bullhorn records.
Production migration in dependency order
We run production migration in record-dependency order: Bullhorn Users (validated from step 4), JobOrder (requisitions), Candidate (applicant records with resume attachment metadata), JobSubmission (applications linked to JobOrder and Candidate), then document files (resumes, offer letters, contracts via separate file API calls). Each phase emits a row-count reconciliation report showing records imported, records rejected, and the reason for each rejection. Rejected records are corrected and retried within the same phase before moving to the next.
Cutover, validation, and workflow rebuild handoff
We freeze PeopleStrong writes during cutover, run a final delta migration of any records modified during the migration window, then enable Bullhorn as the system of record for recruitment activity. We deliver a written inventory of PeopleStrong workflows, approval chains, and talent acquisition automations that require rebuild in Bullhorn's workflow builder. We support a one-week hypercare window for reconciliation issues. We do not rebuild PeopleStrong workflows as Bullhorn automations inside the migration scope; that is a separate engagement for the customer's Bullhorn admin or a Bullhorn implementation partner.
Out-of-scope data documentation and HR platform handoff
We deliver a structured export of the out-of-scope PeopleStrong data schemas (payroll history, attendance, leave, performance, reimbursements) as JSON and CSV files for the customer's HR admin to ingest into a dedicated HR or payroll platform. This document includes record counts, field definitions, and any date-range scoping applied during discovery. It is not a migration; it is a handoff artifact enabling the customer's HR team to plan the next phase of their HR stack consolidation.
Platform deep dives
PeopleStrong
Source
Strengths
Weaknesses
Bullhorn ATS & CRM
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 PeopleStrong and Bullhorn ATS & CRM.
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
PeopleStrong: Not publicly documented.
Data volume sensitivity
PeopleStrong 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
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