HRMS migration
Field-level mapping, validation, and rollback between Madison Resources and Bullhorn ATS & CRM. We move data and schema; workflows are rebuilt natively in Bullhorn ATS & CRM.
Madison Resources
Source
Bullhorn ATS & CRM
Destination
Compatibility
6 of 12
objects map 1:1 between Madison Resources and Bullhorn ATS & CRM.
Complexity
BStandard
Timeline
6-10 weeks
Overview
Moving from Madison Resources to Bullhorn is a migration from a payroll-funding back-office layer to a staffing-specific ATS-CRM with integrated invoicing. Madison Resources operates without a public REST API; all data extraction requires coordinated file exports generated by Madison support on a negotiated schedule. We initiate that export request during discovery, lock the snapshot date, and use the resulting files as our migration source. Workers map to Bullhorn Candidates with direct-deposit, tax withholding, and pay-rate fields preserved. Assignments link to Bullhorn Placements against Job Orders, preserving bill-rate and pay-rate differentials. Madison's Payroll Runs and Invoice records move into Bullhorn custom fields and objects. We do not migrate Bullhorn Workflows, Sequences, or automations; we deliver a written inventory of any assignment auto-end rules or payroll cut-off logic that requires rebuild in Bullhorn. Payroll funding and factor-fee arrangements are contractual and do not migrate; firms must renegotiate funding terms with their chosen funder or bank 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 Madison Resources 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.
Madison Resources
Worker
Bullhorn ATS & CRM
Candidate
1:1Madison Workers map to Bullhorn Candidates as the primary person record. Full name, SSN, work authorization (I-9), tax withholding elections, direct deposit details, and pay rate transfer to Bullhorn Candidate fields and custom fields. The dedupe key is email or, for records without email, a composite of first name, last name, and date of birth. Bullhorn Starter tier supports CSV imports for Candidates; Growth and Enterprise tiers use the REST API which preserves field typing and lookup relationships during migration.
Madison Resources
Assignment
Bullhorn ATS & CRM
Job Order + Placement
1:manyMadison Assignments split across Bullhorn Job Order (the job opening) and Placement (the worker's actual assignment to that job). Bill rate, pay rate, client link, start date, end date, status, and any rate differential map to the Placement record. The Job Order captures job title, description, and status. Bullhorn's Placement record does not natively support assignment history timeline; we store assignment status changes and rate modifications as Bullhorn Notes or custom fields on the Placement record to preserve the full lifecycle view from Madison.
Madison Resources
Payroll Run
Bullhorn ATS & CRM
Custom Object (Payroll History)
lossyMadison payroll runs (earnings, deductions, taxes, net pay per pay period per worker) map to a Bullhorn custom Payroll History object or custom fields on the Placement record. Each payroll run is linked to the Worker (Candidate) and Assignment (Placement) via Bullhorn lookup fields. Bullhorn does not generate payroll runs natively; the destination firm will use Bullhorn's optional payroll add-on or a separate payroll processor post-migration. We flag the final payroll run date in Madison as the migration cutover boundary for payroll processing.
Madison Resources
Invoice
Bullhorn ATS & CRM
Invoice (Bullhorn Invoicing module)
1:1Madison Invoice headers and line items map to Bullhorn Invoice records. Hours worked, bill rate, applicable markups, status (draft, submitted, paid), and the Assignment linkage migrate with the original values. Bullhorn Invoice status values are mapped from Madison's status field during transformation. If the firm does not license Bullhorn Invoicing, invoices migrate as a custom Invoice object with the same fields and relationship to Placement.
Madison Resources
Compliance Document (I-9, W-2, Tax Forms)
Bullhorn ATS & CRM
Custom Field + Document Manifest
1:1Madison compliance documents (I-9s, W-4, state tax forms, signed worker agreements) have no native Bullhorn equivalent. We extract document references and file paths from Madison's data export, map document types to Bullhorn Candidate custom fields (e.g., i9_status, w4_received, tax_form_state), and produce a separate document file manifest with URLs or file bundles. Physical file transfer is a manual handoff step coordinated with Madison support separate from the structured data migration.
Madison Resources
SUTA Tracking Record
Bullhorn ATS & CRM
Custom Object (SUTA Tracker)
lossyMadison's state unemployment tax limit tracking (worker ID, state, YTD wages, state wage base limit, limit status) maps to a Bullhorn custom SUTA Tracker object with fields for state, ytd_wages, wage_base_limit, and limit_exceeded_flag, linked to the Candidate record. Bullhorn Growth or Enterprise is required for multiple custom objects. SUTA rates change annually and vary by state; we preserve the historical tracking values as of the export date and flag that the destination system's current-year rate tables require manual configuration by the customer's payroll team post-migration.
Madison Resources
Tax Record (Quarterly/Annual Summary)
Bullhorn ATS & CRM
Custom Object (Tax Summary)
1:1Madison federal, state, and local tax withholdings and filings migrate as quarterly and annual Tax Summary records in a Bullhorn custom object linked to the Candidate. Per-pay-period tax detail requires field mapping to align with the destination payroll system's tax configuration. We preserve quarterly federal940, state quarterly, and annual W-2 summary values but flag that the new payroll processor's tax table setup is a separate post-migration configuration step.
Madison Resources
Client/Customer (bill-to entity)
Bullhorn ATS & CRM
Client Corporation
1:1Madison's client bill-to entities map to Bullhorn Client Corporation records. Company name, address, billing contact, and any factor arrangements (not the contract itself) transfer to Bullhorn fields. Client Corporation is created before any Placement import so that the client lookup is satisfied at the moment of Placement insert.
Madison Resources
Worker (pay rate)
Bullhorn ATS & CRM
Candidate custom field (pay_rate__c)
lossyMadison Worker pay rate (hourly or salary) migrates as a Bullhorn Candidate custom field pay_rate__c rather than a standard Bullhorn field, since Bullhorn Candidate does not natively store payroll rate. This field is used to populate Placement pay rate and for payroll processing in the destination payroll system. The field type is currency or number depending on the Bullhorn configuration.
Madison Resources
Worker (direct deposit)
Bullhorn ATS & CRM
Candidate custom field (payment_info__c)
lossyMadison direct deposit details (bank name, routing number, account type, account number last four) migrate to Bullhorn Candidate custom fields for payment_info__c and payment_method__c. Bullhorn does not store banking details natively; these fields serve as a reference for the payroll processor or are manually re-entered in the payroll add-on. We flag that banking details require re-entry or secure transfer per the destination system's security requirements.
Madison Resources
Factor Fee Schedule
Bullhorn ATS & CRM
Written Inventory (out of scope)
1:1Madison's factor-fee schedules (advance rates, factoring fees, recourse provisions) are stored in individual client contracts and are not part of Madison's operational data export. These do not migrate. We produce a written inventory of the factor terms from the client's contract copies as a reference document for renegotiating funding with a new funder or establishing a bank credit line post-migration.
Madison Resources
Assignment Rate Differential
Bullhorn ATS & CRM
Placement custom fields
lossyMadison Assignment records may include bill-rate to pay-rate differentials, overtime markup rules, or per-diem adjustments that are staffing-specific. These map to Bullhorn Placement custom fields (bill_rate__c, pay_rate__c, markup_pct__c, overtime_multiplier__c) that Bullhorn's invoicing and payroll modules reference. Bullhorn Growth or Enterprise is required for placement-level custom fields beyond the standard bill and pay rate fields.
| Madison Resources | Bullhorn ATS & CRM | Compatibility | |
|---|---|---|---|
| Worker | Candidate1:1 | Fully supported | |
| Assignment | Job Order + Placement1:many | Fully supported | |
| Payroll Run | Custom Object (Payroll History)lossy | Fully supported | |
| Invoice | Invoice (Bullhorn Invoicing module)1:1 | Fully supported | |
| Compliance Document (I-9, W-2, Tax Forms) | Custom Field + Document Manifest1:1 | Fully supported | |
| SUTA Tracking Record | Custom Object (SUTA Tracker)lossy | Fully supported | |
| Tax Record (Quarterly/Annual Summary) | Custom Object (Tax Summary)1:1 | Fully supported | |
| Client/Customer (bill-to entity) | Client Corporation1:1 | Fully supported | |
| Worker (pay rate) | Candidate custom field (pay_rate__c)lossy | Fully supported | |
| Worker (direct deposit) | Candidate custom field (payment_info__c)lossy | Fully supported | |
| Factor Fee Schedule | Written Inventory (out of scope)1:1 | Fully supported | |
| Assignment Rate Differential | Placement custom fieldslossy | 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.
Madison Resources gotchas
No public API means export scoping requires Madison coordination
Payroll funding terms are contractual and not exported
Multi-state SUTA rates change annually and vary by state
Document file exports require separate file-level coordination
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 export coordination with Madison
We audit Madison Resources data scope including Worker count, Assignment history volume, payroll run frequency and period count, invoice count, SUTA tracking state coverage, and compliance document inventory. We initiate the data export request through Madison's account management team immediately upon engagement since Madison generates exports on a negotiated schedule. We lock the snapshot date for payroll period alignment and confirm whether the export includes document path references or requires a separate file request. We also confirm the customer's current Bullhorn edition and license count to determine API access level and custom object allowance.
Bullhorn schema design and custom object provisioning
We design Bullhorn's destination schema: Client Corporation records (from Madison client entities), Candidate records (from Madison Workers), Job Order and Placement records (from Madison Assignments), and custom objects for Payroll History, SUTA Tracker, and Tax Summary. Bullhorn Growth or Enterprise is required for more than two custom objects; we configure these via Bullhorn Support using the Custom Object Setup Sheet template. We create custom fields on Placement for bill rate, pay rate, markup, overtime multiplier, and pay period alignment. Bullhorn API user accounts with appropriate REST permissions are provisioned before migration.
Sandbox migration and relationship reconciliation
We run a full migration into Bullhorn Sandbox using production data volume. We validate that Workers link to Candidates, Assignments resolve to Placements with correct Job Order and Client Corporation lookups, payroll history records attach to the right Candidate and Placement, and SUTA tracker entries reference the correct state wage base and worker. The customer reconciles 25-50 randomly sampled records against Madison source data, validates invoice totals against Madison billing reports, and signs off on the sandbox before production migration proceeds.
Payroll run boundary and final cutover date alignment
We identify the final completed Madison payroll run date as the migration cutover boundary. Any payroll runs in progress at the time of export are flagged as in-flight and resolved with Madison support before the snapshot is finalized. We extract all completed payroll runs through the cutover date and map them to Bullhorn custom Payroll History records. The firm confirms whether payroll processing continues in Madison through a parallel period or transitions entirely to the new payroll processor on cutover day.
Production migration in dependency order
We run production migration in dependency order: Client Corporations (from Madison client entities), Candidates (from Madison Workers with custom pay rate and payment info fields), Job Orders (placeholder records linked to Client Corporations), Placements (with bill rate, pay rate, Client Corporation, and Candidate lookups resolved), Payroll History custom records (linked to Candidate and Placement), Invoice records (linked to Placement and Client Corporation), SUTA Tracker custom records (linked to Candidate), and Tax Summary custom records (linked to Candidate). Each phase emits a row-count reconciliation report before the next phase begins. Bullhorn REST API with batch chunking and exponential backoff handles the load; Starter-tier customers receive a CSV-based migration with relationship preservation documented in the reconciliation report.
Cutover, document handoff, and automation rebuild inventory
We freeze Madison write access during cutover, run a final delta migration of any records created or modified during the migration window, then enable Bullhorn as the system of record for candidate and placement data. We deliver the compliance document file manifest with URLs and file paths for the customer's Bullhorn admin to upload. We deliver the Workflow and automation rebuild inventory documenting any Madison assignment auto-end rules, payroll triggers, and billing automations with recommended Bullhorn Workflow equivalents. We do not rebuild Madison automations inside the migration scope; that is a separate Bullhorn admin task or a Bullhorn partner engagement. We support a one-week hypercare window for reconciliation issues raised during the first payroll cycle post-migration.
Platform deep dives
Madison Resources
Source
Strengths
Weaknesses
Bullhorn ATS & CRM
Destination
Strengths
Weaknesses
Complexity grading
Standard HRMS migration. All 7 core objects map 1:1 between Madison Resources and Bullhorn ATS & CRM.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Madison Resources and Bullhorn ATS & CRM.
Object compatibility
All 7 core objects map 1:1 between Madison Resources 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
Madison Resources: Not publicly documented.
Data volume sensitivity
Madison Resources 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.
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FAQ
Answers to the questions buyers ask most during Madison Resources to Bullhorn ATS & CRM migration scoping. Not seeing yours? Book a call.
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