HRMS migration
Field-level mapping, validation, and rollback between SeamlessHR and Crelate. We move data and schema; workflows are rebuilt natively in Crelate.
SeamlessHR
Source
Crelate
Destination
Compatibility
8 of 12
objects map 1:1 between SeamlessHR and Crelate.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Moving from SeamlessHR to Crelate is a platform-type migration that separates recruiting data from a full HRMS into a dedicated ATS/CRM. SeamlessHR bundles recruitment with payroll, performance management, and employee records for African markets; Crelate is a US-focused recruiting platform with ATS, CRM, and sourcing unified in one interface. We migrate the candidate database, job records, workflow stage history, and attachments. Employee records, leave balances, and payroll data do not map to Crelate's schema and are flagged as out-of-scope during scoping. The two most significant migration risks are SeamlessHR's undocumented API rate limits and the need to extract SeamlessHiring custom field definitions before importing values into Crelate. Workflow routing logic does not migrate; we deliver a written inventory of configured approval chains for the customer's admin to rebuild in Crelate.
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 SeamlessHR object lands in Crelate, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
SeamlessHR
Candidate / Applicant
Crelate
Candidate
1:1SeamlessHR's applicant records from SeamlessHiring map directly to Crelate's Candidate object. The full name, email, phone, current company, current title, source channel, and application date transfer 1:1. We resolve the Crelate Candidate unique ID at import time for use as the parent reference on all related objects. Any applicant with no email is flagged as a potential duplicate and held in a review queue before insert.
SeamlessHR
Employee
Crelate
(Out of scope)
lossySeamlessHR Employee records do not map to any Crelate object. Crelate is an ATS/CRM with no HRIS or employee record layer. If the customer runs dual systems (Crelate for recruiting, SeamlessHR for payroll and HRIS), we document the split and advise the customer to provision a separate SeamlessHR Lite or Core instance for ongoing employee management. Historical employee records with performance data are flagged as not migratable to Crelate's schema.
SeamlessHR
Job Requisition
Crelate
Job
1:1SeamlessHR requisitions map to Crelate Jobs. The requisition title, description, location, employment type (full-time, contract), and department transfer. Job status (open, filled, on hold, closed) maps directly. We extract the workflow stage name and stage order from SeamlessHiring to rebuild the equivalent pipeline stage in Crelate's ATS pipeline configuration before migration.
SeamlessHR
Workflow Stage (SeamlessHiring)
Crelate
Pipeline Stage
lossySeamlessHiring stages are an ordered sequence tied to each applicant. We extract stage names, order index, and the stage each applicant has passed through, then configure matching pipeline stages in Crelate's ATS. The candidate's current stage migrates as a Crelate Activity note on the Candidate record since Crelate does not have a native workflow stage history object. Customers who rely on complex conditional stage routing document it during scoping for manual rebuild in Crelate's workflow automation.
SeamlessHR
Organization Structure
Crelate
(Out of scope)
1:1SeamlessHR org chart and department hierarchy do not map to Crelate's schema. Crelate has no organizational structure object. If the customer uses departments as job classification metadata, we map the SeamlessHR department name to a Crelate custom field on the Job record. Parent-child reporting relationships are preserved as a written document for the customer's admin to re-establish in their retained HRIS platform.
SeamlessHR
Leave Management
Crelate
(Out of scope)
1:1SeamlessHR leave balances, entitlement policies, and request history have no Crelate equivalent. Crelate is ATS-only. Leave data is flagged as out-of-scope during discovery. If the customer uses SeamlessHR specifically for leave management and Crelate for recruiting, we recommend retaining SeamlessHR Lite for leave management or migrating leave data to a dedicated leave management platform as a parallel engagement.
SeamlessHR
Payroll Records
Crelate
(Out of scope)
1:1Historical payslips and payroll runs do not map to Crelate's ATS schema. If the customer runs SeamlessHR payroll and Crelate recruiting in parallel, payroll records stay in SeamlessHR. We document the payroll module boundary explicitly in the migration scope and flag that compensation data attached to candidate records (for contractor or contract-to-hire placements) may need to be stored as a custom field on the Crelate Candidate record rather than in a native payroll object.
SeamlessHR
Custom Fields (Requisition)
Crelate
Custom Fields (Job)
lossySeamlessHR custom fields on requisitions require schema extraction before migration. We retrieve the field definition list via API first (field name, field type), pre-create matching custom fields in Crelate Job, then pull the values per requisition record. If a custom field type (date, number, text, dropdown) has no direct Crelate equivalent, we map to the nearest Crelate type and flag the mapping in the reconciliation report. Customer must pre-create any custom fields in Crelate before the migration run begins.
SeamlessHR
Custom Fields (Employee)
Crelate
Custom Fields (Candidate)
lossySeamlessHR custom fields on employee profiles map to Crelate Candidate custom fields if the employee was previously an applicant in SeamlessHR. We extract the field definition list first, pre-create matching custom fields in Crelate Candidate, then import values. This mapping applies only to applicants with an existing SeamlessHR candidate record; pure HRIS custom fields on employee-only records are out of scope.
SeamlessHR
Documents (Candidate)
Crelate
Attachments (Candidate)
1:1Candidate documents (resumes, cover letters, portfolio files) attached to SeamlessHR applicant profiles migrate as Crelate Candidate attachments. We extract document metadata and binary blobs, map the file name, and attach to the corresponding Crelate Candidate record. Large attachments (over 10 MB per file) are flagged for manual re-upload if Crelate's file size limits are encountered. We preserve the original file name and upload timestamp.
SeamlessHR
Performance Reviews
Crelate
(Out of scope)
1:1SeamlessHR performance and potential ratings, review cycles, and goal data do not map to Crelate's ATS schema. This data is available on SeamlessHR Core tier and above. We flag it as out-of-scope and recommend the customer retains SeamlessHR Core or migrates performance data to a dedicated performance management platform (Lattice, BambooHR, Workday) as a parallel engagement.
SeamlessHR
Approval Workflows
Crelate
(Out of scope)
1:1SeamlessHR approval chains and routing logic do not migrate. We do not migrate workflow definitions. We deliver a written inventory of every configured approval chain in SeamlessHR (which stages require approval, who the approver role is, what conditions trigger escalation) so the customer's admin can rebuild equivalent automation in Crelate's workflow builder post-migration.
| SeamlessHR | Crelate | Compatibility | |
|---|---|---|---|
| Candidate / Applicant | Candidate1:1 | Fully supported | |
| Employee | (Out of scope)lossy | Fully supported | |
| Job Requisition | Job1:1 | Fully supported | |
| Workflow Stage (SeamlessHiring) | Pipeline Stagelossy | Fully supported | |
| Organization Structure | (Out of scope)1:1 | Fully supported | |
| Leave Management | (Out of scope)1:1 | Fully supported | |
| Payroll Records | (Out of scope)1:1 | Mapping required | |
| Custom Fields (Requisition) | Custom Fields (Job)lossy | Fully supported | |
| Custom Fields (Employee) | Custom Fields (Candidate)lossy | Fully supported | |
| Documents (Candidate) | Attachments (Candidate)1:1 | Fully supported | |
| Performance Reviews | (Out of scope)1:1 | Mapping required | |
| Approval Workflows | (Out of scope)1:1 | Not 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.
SeamlessHR gotchas
Exited employee export is a separate workflow from active employee export
Custom fields lack a standardized import template
API rate limits and bulk endpoints are not publicly documented
Crelate gotchas
120 req/min API rate limit throttles bulk migrations
20 custom field per-entity cap forces data model decisions
15,000-record export ceiling on single operations
Sequences and automation workflows do not migrate
API key is a querystring parameter, not a header
Pair-specific challenges
Migration approach
Discovery and data boundary definition
We audit the source SeamlessHR portal for active and historical applicant records, job requisitions, workflow stage names and sequences, custom field definitions (employee and requisition), document attachment volume, and the SeamlessHR module footprint (HRIS only, HRIS plus Payroll, HRIS plus Performance). We pair this with a data boundary definition: recruiting data (applicants, jobs, attachments) migrates to Crelate; employee records, payroll, leave, performance, and org structure are documented as out-of-scope with a recommendation to retain a scaled SeamlessHR Lite or Core instance for HRIS. The discovery output is a written migration scope with record counts per object and a dual-system architecture recommendation.
Schema extraction and Crelate pre-configuration
We extract SeamlessHR custom field definitions via API before any data extraction begins. We then pre-create matching custom fields in Crelate Job and Candidate objects. We configure Crelate pipeline stages to match SeamlessHiring workflow stages in name and order. We extract the complete stage sequence and map each applicant's current stage to a Crelate Activity note. If Crelate does not have an equivalent field type for a SeamlessHR custom field, we document the mapping and apply the closest Crelate type. The customer must provision at least one Crelate user account before this step begins.
Sandbox migration and reconciliation
We run a full migration into Crelate's sandbox or trial environment using production data volume. The customer's recruiting operations lead reconciles record counts (candidates in, jobs in, attachments in, stage history), spot-checks 25-50 random candidates against the SeamlessHR source, and signs off the schema and field mapping before production migration begins. Any custom field mapping corrections, stage name adjustments, or duplicate handling rules are resolved here, not in production.
Candidate and job bulk import
We run the production migration in dependency order: Jobs first (since candidates attach to a Job), then Candidates with the Job reference resolved, then custom field values per record, then attachment metadata and binary blobs. Each phase emits a row-count reconciliation report before the next phase begins. We use Crelate's REST API with adaptive request pacing and exponential backoff for all imports. Large attachment files (over 10 MB) are flagged for manual re-upload if Crelate's file size limits are encountered.
Workflow and stage history handoff
We deliver the SeamlessHR approval chain inventory as a written document listing each configured workflow, its trigger, approver roles, conditions, and recommended Crelate equivalent. We also deliver the SeamlessHiring stage history as a Crelate Activity note per candidate documenting which stages each applicant passed through. The customer's admin uses these documents to rebuild workflow automation in Crelate post-migration. We do not rebuild automation inside the migration scope.
Cutover and dual-system validation
We freeze SeamlessHR writes during cutover, run a final delta migration of any candidate records or job updates made during the migration window, then enable Crelate as the recruiting system of record. We validate that all candidate records, job records, attachments, and stage history are accessible and searchable in Crelate. We support a one-week hypercare window to resolve any reconciliation issues raised by the recruiting team. We do not provide ongoing admin support, training, or workflow rebuild as part of the migration scope; these are separate engagements.
Platform deep dives
SeamlessHR
Source
Strengths
Weaknesses
Crelate
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 SeamlessHR and Crelate.
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
SeamlessHR: Not publicly documented.
Data volume sensitivity
SeamlessHR 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
Answers to the questions buyers ask most during SeamlessHR to Crelate migration scoping. Not seeing yours? Book a call.
Walk through your SeamlessHR to Crelate migration with a real engineer — 30 minutes, free, written quote within 24 hours.
Book a free 30 minute consultationAdjacent paths
Other ways to leave SeamlessHR
Other ways to arrive at Crelate
Ready when you are
Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.