HRMS migration

Migrate from Workstream to Bullhorn ATS & CRM

Field-level mapping, validation, and rollback between Workstream and Bullhorn ATS & CRM. We move data and schema; workflows are rebuilt natively in Bullhorn ATS & CRM.

Workstream logo

Workstream

Source

Bullhorn ATS & CRM

Destination

Bullhorn ATS & CRM logo

Compatibility

92%

11 of 12

objects map 1:1 between Workstream and Bullhorn ATS & CRM.

Complexity

BStandard

Timeline

3-5 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Moving from Workstream to Bullhorn is a data-model translation from a location-centric hourly-workforce HR platform into a recruitment-agency ATS and CRM. Workstream organizes around Locations, Positions scoped to stores, and Employees with a lifecycle status (Active, Onboarding, Offboarded). Bullhorn organizes around Candidates, JobOrders, and JobSubmissions with staffing-specific pipelines, client corporations, and placement tracking. We extract Workstream's three-tab export (Active, Onboarding, Offboarded), flatten Position Templates into instantiated Position records, and map each to Bullhorn entities. Binary document files (tax forms, ID scans, signed onboarding packets) stored as attachments in Workstream do not migrate through the export tool and are flagged as out of scope. Integration OAuth tokens linking Workstream to ADP, Square, Toast, or QuickBooks also cannot transfer between tenants and are documented separately for reconfiguration at Bullhorn. Bullhorn's custom field limits vary by edition: Bullhorn ATS caps at 2 custom objects with 55 fields each, while Front Office Growth and Enterprise support up to 10 custom objects with 55 fields each. We scope the destination edition against the customer's custom field volume before migration begins.

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

Workstream logo

Workstream

What's pushing teams away

  • Some users report that reporting features are limited or buggy, forcing managers to export CSVs and build reports outside the platform for basic workforce analytics.
  • Customers with non-standard shift structures find that scheduling capabilities do not always handle complex rotation patterns or split shifts cleanly.
  • Integration reliability concerns appear in reviews — connecting to third-party payroll or POS systems sometimes breaks after platform updates, requiring re-authentication or re-mapping.
  • Smaller businesses that do not operate multiple locations find the location-based pricing model adds cost without proportionate value compared to per-user HR tools.

Choosing

Bullhorn ATS & CRM logo

Bullhorn ATS & CRM

What's pulling them in

  • Agencies choose Bullhorn because it combines ATS and CRM in one platform, eliminating the need to switch between separate tools for candidate management and client relationship tracking.
  • The resume parser extracts contact details, work history, and skills into structured, searchable candidate profiles automatically without manual data entry, reportedly driving 24% more placements per recruiter.
  • Bullhorn's placement and split-billing model natively supports contract staffing workflows, handling start/end dates, overtime rules, and multi-party pay/charge rates in a single record.
  • The platform offers extensive third-party integrations through its Recruitment Cloud Marketplace, connecting with back-office, onboarding, and payroll systems used by staffing agencies.
  • 72% of Bullhorn customers are teams with fewer than 10 users, and Bullhorn's implementation team handles setup and data migration for small agencies going live within weeks.

Object mapping

How Workstream objects map to Bullhorn ATS & CRM

Each row shows how a Workstream 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.

Workstream

Employee (Team Member)

maps to

Bullhorn ATS & CRM

Candidate

1:1
Fully supported

Workstream Employee records map to Bullhorn Candidate records. The three Workstream lifecycle tabs (Active, Onboarding, Offboarded) each produce Candidate records with their original status preserved in a custom field workstream_lifecycle_status__c. Standard mappings include firstName, lastName, phone, email, address fields, dateOfHire to dateAdded, and job title or position name to primarySkills or a custom field workstream_position__c. We resolve the candidate deduplication key by email address during import.

Workstream

Position

maps to

Bullhorn ATS & CRM

JobOrder

1:1
Fully supported

Workstream Position records map to Bullhorn JobOrder. Each Position's location assignment maps to a Bullhorn JobAddress or to a custom field workstream_location__c on the JobOrder. Position title, pay rate/range, schedule type, and job description map to corresponding JobOrder fields or custom fields (title, salary, hours, description). We preserve the Position's department assignment as a custom field workstream_department__c on the JobOrder.

Workstream

Position Template

maps to

Bullhorn ATS & CRM

JobOrder (tagged)

1:1
Fully supported

Workstream Position Templates are reusable job definitions that feed multiple Position instances. We flatten Position Templates into their instantiated Position records during export, tagging each with the template origin as a custom field workstream_template_id__c on the resulting JobOrder in Bullhorn. This preserves the standardization benefit without requiring Bullhorn to replicate the template-parent structure.

Workstream

Application

maps to

Bullhorn ATS & CRM

JobSubmission

1:1
Fully supported

Workstream Applications (candidate submissions tied to a specific Position) map to Bullhorn JobSubmission. The mapping includes applicant contact info, answers to screening questions migrated as custom fields on the JobSubmission, communication history migrated as Note or Task records linked to the JobSubmission, and status in the hiring pipeline mapped to Bullhorn's submissionStatus field. The candidate-to-job association is preserved by resolving both the Candidate and JobOrder references at migration time.

Workstream

Location

maps to

Bullhorn ATS & CRM

Branch or Corporate Department

1:1
Fully supported

Workstream's primary organizational unit is the Location (physical store or office). We preserve Location names and addresses as Bullhorn Branch records if the destination Bullhorn edition includes Branch functionality, or as custom fields workstream_location_name__c and workstream_location_address__c on the Candidate and JobOrder for standard Bullhorn ATS editions. Each Location's assigned manager maps to a Bullhorn User reference.

Workstream

Custom Fields (Team Member)

maps to

Bullhorn ATS & CRM

Custom Fields on Candidate

1:1
Fully supported

Workstream custom fields on team members (text, date, number, dropdown) map to Bullhorn custom fields on Candidate. We detect field-level presence during Workstream profiling because Workstream custom fields can be scoped to specific roles, locations, or departments, meaning a field may exist on one employee record but not another. We map only fields that are populated for each individual record, avoiding null-fill issues. Bullhorn ATS edition limits mapping to 2 custom objects with 55 fields each; if custom field count exceeds this, we recommend Front Office Growth or Enterprise edition during scoping.

Workstream

Custom Fields (Position)

maps to

Bullhorn ATS & CRM

Custom Fields on JobOrder

1:1
Fully supported

Workstream custom fields on Positions map to Bullhorn custom fields on JobOrder. These commonly include internal job codes, franchise-specific requirements, or uniform allowances. We extract all active Position-level custom fields and map them to Bullhorn JobOrder custom fields of equivalent type (text, date, number, picklist). The workstream_position_custom__c prefix distinguishes them from employee-level custom fields in the destination.

Workstream

Custom Fields (Location)

maps to

Bullhorn ATS & CRM

Custom Fields on Branch or Account

1:1
Fully supported

Workstream custom fields scoped to Locations (e.g., regional manager, district code, store format) map to Bullhorn custom fields on the Branch or on a ClientCorporation record representing the franchise or corporate entity. We resolve the parent Location for each Workstream employee and Position during scoping and attach the Location-level custom field values to the corresponding Bullhorn records.

Workstream

Hiring Pipeline Stages

maps to

Bullhorn ATS & CRM

JobOrder Status or Custom Field

lossy
Mapping required

Workstream uses configurable pipeline stages for the hiring process (Applied, Screening, Interview, Offer, Hired). We extract the full pipeline definition and map stage names and order to Bullhorn JobOrder status values or to a custom field workstream_pipeline_stage__c. If Workstream uses custom pipeline configurations per location or role, we document each pipeline variant during scoping and apply the correct stage mapping per JobOrder at migration time.

Workstream

Payroll Data

maps to

Bullhorn ATS & CRM

Custom Fields on Candidate or Placement

1:1
Mapping required

Workstream stores pay rates, pay schedules, and payroll sync status as employee properties rather than running payroll itself. These migrate as Bullhorn custom fields on the Candidate (payRate, payRateType, payrollSyncStatus) or on the Placement record if the customer licenses Bullhorn Time & Expense. We flag any Workstream-integrated payroll provider (ADP, Paychex, Paylocity) during scoping and document the integration for reconfiguration against Bullhorn's supported payroll integrations post-migration.

Workstream

Offboarded Employee History

maps to

Bullhorn ATS & CRM

Candidate (historical record)

1:1
Fully supported

Workstream's offboarded employee records require explicit scoping because the standard export may omit the Offboarded tab. We query all three tabs (Active, Onboarding, Offboarded) explicitly during discovery, include offboarded history in the migration package unless the customer opts out, and preserve terminationDate and terminationReason fields as custom fields on the Bullhorn Candidate record. This preserves compliance records that may be required for rehire eligibility checks or audit purposes.

Workstream

Roles and Assignments

maps to

Bullhorn ATS & CRM

Custom Fields on Candidate or JobOrder

1:1
Mapping required

Workstream role definitions scoped to locations determine pay and schedule authority. We map which roles exist and how employees are assigned to them, preserving the location-role combination as a custom field workstream_role_assignment__c on the Bullhorn Candidate. Role definitions themselves (the list of available roles) migrate as a custom picklist or as records in a custom object depending on Bullhorn edition.

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.

Workstream logo

Workstream gotchas

High

Location-based pricing does not follow employee headcount

Medium

Offboarded employee data requires explicit scoping

Medium

Custom field schemas vary by location and role scope

High

Binary document files are not migratable

Bullhorn ATS & CRM logo

Bullhorn ATS & CRM gotchas

High

ATS Growth edition has no API access

High

Attachments excluded from CSV bulk exports

Medium

Custom Object limits vary sharply by edition

Medium

Opportunity pipeline stages are recruitment-specific

Low

Resume parse quality varies by document format

Pair-specific challenges

  • Binary document files cannot migrate from Workstream

    Workstream stores tax forms, ID scans, and signed onboarding documents as binary attachments. The CSV export tool does not include these files, and there is no API endpoint in Workstream that exposes document blobs for programmatic extraction. We flag document packet migration as out of scope during scoping, advise the customer to download document packets separately before cutover, and migrate employee metadata about document completion status (which forms were submitted, submission dates) as a custom field on the Candidate. If the customer requires document continuity at Bullhorn, they must re-upload documents post-migration or use a Bullhorn document management integration.

  • Workstream custom field scoping by location creates partial-field records

    Workstream custom fields can be scoped to specific roles, locations, or departments. This means a custom field may exist on one employee record but not on another within the same organization. We detect field-level presence during profiling by querying Workstream's custom field schema against each employee record, generating a per-record field manifest before mapping. This prevents Bullhorn custom fields from receiving null values for records where the source field did not apply, which would otherwise trigger Bullhorn validation errors or required-field conflicts.

  • Bullhorn ATS edition caps custom objects at two

    Bullhorn ATS edition limits custom objects to 2 with 55 fields each. Front Office Growth and Enterprise support up to 10 custom objects. If the customer's Workstream implementation uses more than 2 custom object-equivalents across team members, positions, and locations, we identify this during scoping and recommend a Bullhorn edition upgrade before migration begins. Migrating to Bullhorn ATS with a custom object count that exceeds the cap results in schema truncation that is difficult to recover from without a re-migration.

  • Bullhorn REST API Fair Use Policy restricts bulk extraction to authorized solutions

    Bullhorn's API Fair Use Policy explicitly prohibits bulk data transfer to unauthorized third-party solutions without written permission. We work within this constraint by using Bullhorn's documented REST API for record insertion (with batch chunking and exponential backoff on rate-limit responses) rather than attempting to extract from Bullhorn. For the Workstream-to-Bullhorn migration, we extract from Workstream via CSV and load into Bullhorn via API, which does not trigger Bullhorn's Fair Use Policy because we are not extracting Bullhorn data. The customer does not need to obtain Bullhorn's written permission for this direction of migration.

  • Offboarded employee tab requires explicit export request

    Workstream separates Active, Onboarding, and Offboarded employees into distinct tabs in its export tool. By default, a standard export may include only the Active tab. We query all three tabs explicitly during discovery and include offboarded records in the migration scope unless the customer explicitly opts out. Termination dates and reasons migrate as custom fields on Bullhorn Candidate records. Omitting the offboarded tab results in incomplete compliance records and potential rehire eligibility gaps at the destination.

Migration approach

Six steps for a successful Workstream to Bullhorn ATS & CRM data migration

  1. Discovery and data profiling

    We audit the source Workstream account across all three employee tabs (Active, Onboarding, Offboarded), all Positions and Position Templates, all Applications, all custom field definitions and their location/role/department scopes, all Hiring Pipeline stage configurations, and all active integrations (ADP, Square, Toast, QuickBooks) for documentation purposes. We count the distinct custom field count across all objects to determine the required Bullhorn edition. The discovery output is a written migration scope with record counts per tab, custom field inventory, and edition recommendation.

  2. Source data extraction and profiling

    We extract Workstream data via the platform's native CSV export tool. We pull all three employee tabs, all Position records, all Application records, all Location records, and all custom field data. We profile the extract for data quality issues: missing emails on employee records, duplicate Position titles across locations, inconsistent date formats in offboarded termination fields, and custom field null rates. We produce a profiling report that identifies records requiring pre-migration cleanup or manual review before we begin the Bullhorn load.

  3. Destination schema design and edition validation

    We design the Bullhorn destination schema based on the Workstream custom field inventory. If custom field count exceeds the Bullhorn ATS cap of 2 custom objects, we coordinate with the customer on a Bullhorn edition upgrade (Front Office Growth or Enterprise). We create Bullhorn custom fields on Candidate, JobOrder, JobSubmission, and Branch (if applicable) using the Workstream field names as display labels and API-compatible naming conventions. We configure Hiring Pipeline stage mappings as JobOrder status values or custom fields and deploy the schema to a Bullhorn sandbox or staging environment for validation.

  4. Sandbox migration and record reconciliation

    We run a full migration into the Bullhorn sandbox using production-like data volume. The customer's operations lead reconciles record counts (Candidates in, JobOrders in, JobSubmissions in), spot-checks 25-50 random records against the Workstream source, validates that custom field values match the source for a representative sample, and signs off on the schema and mapping before production migration begins. Custom field scoping corrections and any missing field mappings are resolved here.

  5. Production migration in dependency order

    We run production migration in record-dependency order: Branch or Location configuration (if applicable), Candidates (with workstream_lifecycle_status__c from the offboarded tab preserved), JobOrders (with location references resolved), JobSubmissions (with candidate-to-job associations validated), custom field data on each record type, and finally any offboarded employee compliance fields. Each phase emits a row-count reconciliation report before the next phase begins. We use Bullhorn's REST API with batch chunking and exponential backoff on rate-limit responses to avoid throttling.

  6. Cutover, delta migration, and integration handoff

    We freeze Workstream writes during cutover, run a final delta migration of any records modified during the migration window (new hires, new applications, status changes), then enable Bullhorn as the system of record. We deliver an integration inventory document listing every active Workstream integration (ADP, Square, Toast, QuickBooks) with reconfiguration steps for Bullhorn. We do not rebuild automations, workflows, or hiring pipeline configurations inside Bullhorn as part of the migration scope; those are documented separately for the customer's admin team to configure in Bullhorn. We support a one-week hypercare window for reconciliation issues.

Platform deep dives

Context on both ends of the pair

Workstream logo

Workstream

Source

Strengths

  • Location-centric pricing and data model maps cleanly to franchise and multi-unit operations.
  • Strong pre-built integrations with major payroll providers (ADP, Paychex, Paylocity) and POS systems (Square, Toast).
  • Built-in SMS-based candidate communication reduces time-to-hire for high-turnover hourly roles.
  • CSV data export tool provides direct access to standard, custom, and predefined fields without API complexity.
  • Responsive customer support consistently praised across G2 reviews.

Weaknesses

  • Reporting capabilities are a known pain point — customers resort to manual CSV exports to get basic workforce analytics.
  • Binary documents (tax forms, IDs, signed onboarding files) are not accessible via export tool and cannot be migrated directly.
  • Location-based pricing means even a single-location customer pays a platform fee, which feels disproportionate compared to per-user HR tools.
  • Integration reliability after platform updates is a recurring concern, with some customers losing OAuth connections unexpectedly.
Bullhorn ATS & CRM logo

Bullhorn ATS & CRM

Destination

Strengths

  • Unified ATS and CRM on one platform purpose-built for staffing agencies, eliminating separate tools for candidates and clients.
  • Automated resume parsing extracts structured candidate data—contact details, work history, skills—into searchable profiles instantly.
  • Native placement and split-billing model handles contract staffing workflows including start/end dates and overtime rules.
  • Bullhorn Recruitment Cloud Marketplace offers 100+ pre-validated third-party integrations spanning the full recruiting lifecycle.
  • 24/7 global support coverage from 350+ support staff with dedicated account management included at all tiers.

Weaknesses

  • Widely regarded as old and bloated with an unintuitive interface and steep learning curve for new recruiters.
  • Slow page loads and performance lag cited in over 200 verified G2 reviews during high-volume recruiting periods.
  • Pricing is opaque—custom-negotiated per organization with significant upfront implementation fees that vary by deal.
  • ATS Growth edition excludes API access entirely, preventing automated data export without upgrading first.

Complexity grading

How hard is this migration?

Standard HRMS migration. 1 of 7 objects need a mapping; the rest are 1:1.

B

Overall complexity

Standard migration

Derived from compatibility, mapping clarity, API constraints, and data volume across Workstream and Bullhorn ATS & CRM.

  • Object compatibility

    B

    1 of 7 objects need a mapping; the rest are 1:1.

  • 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

    Workstream: Not publicly documented on developer portal.

  • Data volume sensitivity

    B

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

Estimator

Estimate your Workstream to Bullhorn ATS & CRM 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 Workstream to Bullhorn ATS & CRM data migrations

Answers to the questions buyers ask most during Workstream to Bullhorn ATS & CRM migration scoping. Not seeing yours? Book a call.

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Most migrations land between three and five weeks for accounts under 5,000 Workstream employees with no custom objects exceeding the Bullhorn ATS cap. Migrations with custom objects requiring Front Office Growth or Enterprise, high custom field counts across locations, or comprehensive offboarded employee compliance records move to seven to twelve weeks because of schema design, edition coordination, and multi-tab export reconciliation. Timeline assumes the customer provides Workstream export credentials and Bullhorn API access within the first week of engagement.

Adjacent paths

Related migrations to explore

Ready when you are

Move from Workstream.
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