Why night and overnight shifts get miscalculated
Four classic failures when a shift ends after midnight.
One continuous path from time clocks, shifts, leave and overtime to monthly payroll, payslips and employee self-service.
The new homepage focuses on the real monthly HR path: collect, process, reconcile and publish.
An on-site agent pulls logs from supported time clocks on a schedule, keeps a local queue during outages and records the source device and branch.
Day shifts, night shifts, overnight shifts, mid-shift breaks, overtime in/out and holidays follow configuration instead of spreadsheet workarounds.
Employees view monthly attendance in ESS, agree or send a reason. HR can resend, and supervisors approve through the configured flow.
Each company's formulas run on locked attendance, then generate payroll sheets, PDF payslips and audit trails for later reconciliation.
Scarlet Sails AI helps HR and managers move from a question to the data worth checking, while staying inside assigned permissions. AI supports analysis and recommendations; accountable people still make operational decisions.
Learning, certificates and contract lifecycle data share the same employees, departments, positions and approval paths instead of living in separate tools.
Manage courses, classes, lessons, questions, exams and certificates; track who completed, who failed and who needs retraining.
From probation and new signing to renewals, appendices and expiry alerts; print templates pull directly from employee records.
HR stops stitching data from scattered files, line managers see their team in the period, and employees can check the numbers before payroll is closed.
Close attendance, lock periods, calculate payroll, manage contracts, insurance, tax, hiring, training, AI assistance and reports by data scope.
Approve leave, overtime and missing punches, track absences and overtime hours while the period is still open.
View attendance, payslips and leave balances, submit requests on mobile and confirm monthly attendance before HR locks the period.
The modules share employee records, permissions, approval flows and company-scoped data.
Employee data does not stop at a directory. It continues through operations, controls, approvals and management reporting.
Recruitment, 360 employee records, dependants, health, maternity, contracts, transfers, rewards, discipline and offboarding stay connected to one profile.
Access scope by company, department tree and role; multi-level approvals, a central queue, change logs, login history and server-side payroll masking.
Report templates, declared data sources, usage permissions, configurable columns and Excel output can follow each company's management requirements.
Device Gateway manages time clocks and on-site agents; web/mobile ESS, AI Assistant and n8n carry trusted data into automated workflows.
Scarlet Sails, also known as Cánh Buồm Đỏ, is a management platform shaped by more than ten years of building systems for factories, logistics teams and businesses with complex data flows.
We focus on the difficult work behind the interface: overnight shifts, effective-dated policies, company-specific payroll formulas, data scope, change history and traceability when numbers do not reconcile.
Start with shifts, calendars, pay policy, approval paths, legacy data and the responsibility of each role.
Run an existing attendance and payroll period, then explain every material difference before go-live.
Policies, formulas, report layouts, approval levels and access scope remain manageable inside the system.
Role-based training, in-product guidance and useful audit trails help internal teams investigate with confidence.
The first conversation is about how your operation works, not a feature checklist.
Talk to the Scarlet Sails teamWritten from real rollout work, not repackaged brochures.
Four classic failures when a shift ends after midnight.
USB, vendor software, public devices or an on-site agent.
28 questions to ask a vendor before signing.
Question not here? Send it over. We answer plainly rather than talking around it.
ZKTeco and Ronald Jack devices are fully supported: log download, connection test, device clock read, plus backup and restore of users and biometric templates. For some other brands, log reading needs additional integration.
Formulas are not hard-coded. They live in the system per company, each with its own effective date range. During rollout we build your formula set from your actual payroll policy and reconcile it against your previous payroll run.
No. The system can run on a server inside your company or on a VPS you own. You decide where the database lives.
Excel import covers most master data and records. Where data sits in a previous database, we read it directly, match on employee code and preview before writing.
Send us one month of punch data and your current pay policy. The demo runs on your real numbers, not a sample dataset.