Case Study
GozeBV Wholesale Portal
A private B2B wholesale ordering portal for a European hybrid battery business, gozebv.com.
Visit GozeBV Wholesale Portal
The problem
JustHyb could publish its pricing openly because it sells to the public. GozeBV could not. It needed a private wholesale ordering system carrying confidential, customer-specific pricing for garages, dealerships, and wholesalers across Europe, built around the Google Sheet Murat already manages his business from, not a new system he would have to learn.
What was built
I built a PHP portal with no framework, backed entirely by the Google Sheets API through an authenticated service account under Murat's own Google Cloud project, so per-customer pricing never becomes a public export. Sheet reads are cached server-side for ten minutes to stay inside API rate limits, and the cache clears automatically after any write. New customers are verified against KVK, the Dutch business register, before their account and pricing column go live.
Result
A full B2B flow from access request and KVK verification to order placement and order history, with separate admin and buyer interfaces, running entirely on the sheet Murat already trusted.
Orders stay reviewed before they touch the sheet
Orders start as pending requests. A customer submits an order, it lands as a record Murat reviews, and only his confirmation writes it into the live order sheet. Nothing reaches his business records unchecked.
Support documents live in the same sheet
Every model carries its own support documents, install manuals, and reference photos, pulled straight from the same Google Sheet rather than living in a separate system Murat would have to update twice.