The lorry-haulage tally book, with the tally done for you. A trip is the atomic unit — date, D/O number, lorry, route, tonnage, price; at month end the unbilled ones for a customer become one invoice, rendered to PDF. Payroll runs off the same login, with EPF, SOCSO and EIS frozen onto each slip.
OKAYA runs lorry haulage out of Seremban on a paper book. Every trip went in by hand, and at month end someone tallied a customer's unbilled trips onto one invoice — slow, and easy to bill twice or not at all. Payroll was worked out the same way, which carries a worse risk: if a statutory rate changes, a recalculated slip no longer matches what was actually remitted.
Rebuilt the book as software without changing how the office thinks. Trips log as they happen with the rate prefilled from the customer; Documents pulls every unbilled trip in a date range onto one invoice or quotation and renders the PDF. Payroll computes EPF, SOCSO, EIS and SKBBK off the official schedules and freezes them onto the issued slip, so a later rate change never rewrites history. Every column on the invoice comes off OKAYA's real paperwork — nothing on the document is invented. Deployed to the client's own Supabase and Vercel accounts, so their ledger never sits in ours.
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