HRMS migration
Field-level mapping, validation, and rollback between Phenom and Bullhorn ATS & CRM. We move data and schema; workflows are rebuilt natively in Bullhorn ATS & CRM.
Phenom
Source
Bullhorn ATS & CRM
Destination
Compatibility
9 of 12
objects map 1:1 between Phenom and Bullhorn ATS & CRM.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Phenom and Bullhorn serve different segments of the recruiting market. Phenom is an enterprise Talent Experience platform spanning hire-to-retire with AI-driven FitScore matching, skills ontology, and internal mobility features. Bullhorn is a CRM-first ATS built for staffing and recruiting agencies, with a faster implementation path and more transparent per-seat pricing. Migrating from Phenom to Bullhorn means reshaping a talent-experience data model into an agency-recruitment model: Candidates, Jobs, and Applications map directly, but FitScore AI scores and skills ontology require transformation into custom fields, Phenom Projects (workflows) require structural rebuild as Bullhorn pipeline stages, and the full Phenom campaign history is delivered as a documented inventory for admin rebuild. We do not migrate workflows, automations, or sequences as code; we deliver a written map for the customer's team to rebuild.
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 Phenom 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.
Phenom
Candidate
Bullhorn ATS & CRM
Candidate
1:1Phenom Candidates map directly to Bullhorn Candidate records via the Candidates API and Bullhorn REST API respectively. Standard properties (name, email, phone, address, skills, experience) transfer 1:1. Additional Fields on each Candidate record map to Bullhorn custom fields on the Candidate entity. We export the full Additional Fields payload per candidate including tenant-specific attributes and preserve the original field labels in a migration manifest so the customer can verify mapping completeness.
Phenom
Job
Bullhorn ATS & CRM
JobOrder
1:1Phenom Jobs map to Bullhorn JobOrder records. The Job Sync API export includes active and historical job postings, metadata, location data, and job requirements. Bullhorn JobOrder fields (title, description, employmentType, salary, address, clientCorporation) receive the corresponding Phenom fields directly. Job requirements stored as custom Additional Fields on Jobs map to Bullhorn custom fields on JobOrder.
Phenom
Application
Bullhorn ATS & CRM
JobSubmission
1:1Phenom Applications link Candidates to Jobs and map to Bullhorn JobSubmission records. The Applicants API export includes status, stage progression, timestamps, and the candidate ID association. We resolve the candidate foreign key to Bullhorn Candidate ID and the job foreign key to Bullhorn JobOrder ID at migration time. Application status maps to JobSubmission status with the original Phenom status preserved in a custom field for reconciliation.
Phenom
Employee
Bullhorn ATS & CRM
Employee (Bullhorn ATS)
1:1Phenom Employee Profile records map to Bullhorn Employee records where the Bullhorn ATS edition supports employee management. The Employee Profile API export includes preferences, skills data, and tenure information. We map employee status (active, inactive, terminated) to the corresponding Bullhorn Employee status field. Employee skill data from Phenom maps to Bullhorn custom fields on Employee because Bullhorn does not have a native skills ontology.
Phenom
Tag
Bullhorn ATS & CRM
Custom Candidate Field (multi-select)
lossyPhenom Tag Management APIs export tag assignments and vocabulary per candidate. Bullhorn does not have a native Tag object; tags migrate to custom multi-select picklist fields on the Candidate entity. We export the full tag vocabulary, create a custom field per tag group (or consolidate into a single multi-select if the vocabulary is under 150 values), and map each candidate's tag assignments to the corresponding picklist values.
Phenom
Additional Fields
Bullhorn ATS & CRM
Custom Field or Custom Object
lossyPhenom Additional Fields are tenant-specific custom attributes on candidate profiles exposed via the Candidates API. We export the full Additional Fields payload per candidate and map each to either a Bullhorn custom field (if under the entity field limit) or a Bullhorn Custom Object (if the limit is exceeded or the data is structured). Bullhorn Custom Objects require a Support ticket to provision and support up to 55 fields each depending on edition (Front Office Growth/Enterprise: 10 objects, ATS: 2 objects, ATS Growth: none). We coordinate Custom Object provisioning during the discovery phase.
Phenom
FitScore / AI Matching
Bullhorn ATS & CRM
Custom Fields (skills export)
1:1Phenom FitScore is a proprietary AI-generated candidate-to-job compatibility score built on skills, experience, and qualifications. Bullhorn Amplify provides AI matching but is a separate add-on with a different scoring model. We export the underlying skills, experience, and qualification fields that drive the FitScore so they can be preserved in Bullhorn custom fields or used to configure Bullhorn Amplify matching rules. We document every record that carried FitScore data in the migration manifest with the original score value in a custom field phenom_fitscore__c for audit.
Phenom
Project (Workflow)
Bullhorn ATS & CRM
Pipeline Stage + Record Type
lossyPhenom Projects contain multiple Statuses defining candidate progression paths through a workflow. Bullhorn does not have a native Project object; workflow stages map to Bullhorn pipeline stages on JobSubmission and Candidate entities. We export the complete workflow topology (stage names, ordering, conditional routing) and document it as a Bullhorn pipeline configuration plan with stage-to-stage mapping. Custom routing logic referencing Phenom-specific rules must be rebuilt by the customer's Bullhorn admin post-migration; we provide the written topology map as the rebuild reference.
Phenom
Campaign
Bullhorn ATS & CRM
Campaign
1:1Phenom Campaign APIs manage one-to-many candidate outreach sequences (email and SMS). Bullhorn has a native Campaign object for recruitment marketing campaigns. We export campaign structure, template content, and send history metadata from Phenom. Individual email and SMS message records are exported as engagement data. Bullhorn Campaigns do not natively support automated sequencing; we document the campaign structure so the customer's team can rebuild sequences using Bullhorn Automation or a third-party sales engagement tool.
Phenom
User Management
Bullhorn ATS & CRM
User
1:1Phenom User Management uses SCIM protocol at the User Management APIs. Bullhorn uses its own User entity with role-based access control. We export users, group assignments, and role associations from Phenom and map them to Bullhorn User records with corresponding Bullhorn role assignments. The customer provisions Bullhorn users manually or via SCIM; we coordinate the email-based owner matching during the user reconciliation phase.
Phenom
Prediction (predicted skills)
Bullhorn ATS & CRM
Custom Candidate Fields
1:1The Phenom Prediction API predicts skills based on job titles and provided skill sets, storing results against candidate profiles. These predicted skill mappings export as structured data per candidate. Bullhorn does not have a native predicted skills model. We migrate predicted skills as Bullhorn custom fields on the Candidate record, tagging each field with the original Phenom prediction source (title-based or skills-based) in the field label for traceability.
Phenom
Client / Company
Bullhorn ATS & CRM
ClientCorporation
1:1Phenom tracks Companies as part of its CRM layer. Bullhorn uses ClientCorporation as the entity for recruiting clients (the companies staffing firms place talent with). We export Company records from Phenom and map them to Bullhorn ClientCorporation. The company name, address, industry, and contact associations migrate directly. Any company-specific custom fields map to Bullhorn custom fields on ClientCorporation.
| Phenom | Bullhorn ATS & CRM | Compatibility | |
|---|---|---|---|
| Candidate | Candidate1:1 | Fully supported | |
| Job | JobOrder1:1 | Fully supported | |
| Application | JobSubmission1:1 | Fully supported | |
| Employee | Employee (Bullhorn ATS)1:1 | Fully supported | |
| Tag | Custom Candidate Field (multi-select)lossy | Fully supported | |
| Additional Fields | Custom Field or Custom Objectlossy | Fully supported | |
| FitScore / AI Matching | Custom Fields (skills export)1:1 | Fully supported | |
| Project (Workflow) | Pipeline Stage + Record Typelossy | Fully supported | |
| Campaign | Campaign1:1 | Fully supported | |
| User Management | User1:1 | Fully supported | |
| Prediction (predicted skills) | Custom Candidate Fields1:1 | Fully supported | |
| Client / Company | ClientCorporation1:1 | 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.
Phenom gotchas
Per-user pricing creates billing risk during inbound migration
FitScore AI matching does not transfer 1:1
Workflow Projects and Statuses require structural rebuilding
Analytics and reporting data requires re-aggregation post-migration
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 object inventory
We audit the source Phenom tenant across all objects: Candidates (with Additional Fields and FitScore data), Jobs (with requirements and locations), Applications (with stage history), Employees, Tags, Campaigns, and User accounts. We identify custom objects, FitScore-enabled records, workflow Project topology, and campaign structure. We pair this with a Bullhorn edition assessment based on record volume, Custom Object count needed, and Advanced Reporting requirements. The discovery output is a written migration scope document with object counts, transformation requirements, and Bullhorn edition recommendation.
Bullhorn schema preparation and Custom Object provisioning
We design the Bullhorn destination schema before any data moves. This includes creating custom fields on Candidate, JobOrder, JobSubmission, ClientCorporation, and Employee entities; coordinating Bullhorn Support for Custom Object provisioning if required; designing pipeline record types and stage values mapped from Phenom Project workflow topology; and setting up the custom field phenom_fitscore__c for FitScore audit data. Schema is validated in a Bullhorn Sandbox before production migration begins.
Sandbox migration and reconciliation
We run a full migration into a Bullhorn Sandbox using production-like data volume. The customer's recruiting operations lead reconciles record counts across all objects, spot-checks 25-50 random candidate records against the Phenom source for field completeness, and validates that custom field values transferred correctly. Any mapping corrections are documented and applied before production migration. FitScore data completeness and tag vocabulary mapping are verified at this stage.
Owner and user reconciliation
We extract every distinct Phenom user referenced as an owner or assignee on Candidate, Application, Job, and Employee records. Bullhorn requires an OwnerId on each record at insert time. We match Phenom owners by email against the Bullhorn User table. Any Phenom owner without a matching Bullhorn User goes to a reconciliation queue; the customer's Bullhorn admin provisions missing users before production migration resumes.
Production migration in dependency order
We run production migration in record-dependency sequence: ClientCorporations (from Phenom Companies), Candidates (with Additional Fields and FitScore data), Employees, JobOrders (from Phenom Jobs), JobSubmissions (with Application history and candidate-job links resolved), Tags (as custom multi-select fields), User assignments, and campaign structure metadata. Each phase emits a row-count reconciliation report before the next phase begins. Custom Object data loads last, after the standard entity fields are confirmed.
Cutover, validation, and workflow rebuild handoff
We freeze Phenom writes during cutover, run a final delta migration of any records modified during the migration window, then enable Bullhorn as the system of record. We deliver the Phenom Project-to-Bullhorn pipeline topology map, the FitScore skill data manifest, and the campaign structure inventory as written documents for the customer's admin team. We support a one-week hypercare window for reconciliation issues. We do not rebuild Phenom workflows or campaigns as Bullhorn automations inside the migration scope; that is a separate engagement or an internal admin task.
Platform deep dives
Phenom
Source
Strengths
Weaknesses
Bullhorn ATS & CRM
Destination
Strengths
Weaknesses
Complexity grading
Standard HRMS migration. All 7 core objects map 1:1 between Phenom and Bullhorn ATS & CRM.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Phenom and Bullhorn ATS & CRM.
Object compatibility
All 7 core objects map 1:1 between Phenom and Bullhorn ATS & CRM.
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
Phenom: Not publicly documented in the developer portal.
Data volume sensitivity
Phenom 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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