Modul Sekolah

A product derived from the YissHub SPP module in August 2026, then stripped of every trace of its original client's identity and credentials so it can be installed for any school. The first client, Yayasan Al Irsyad Semarang, is running a trial.

The decisive architectural call: one codebase, no per-client fork. Copying the source for each school means every security fix gets done as many times as there are clients — a cost already proven real. Differences between schools are handled by configuration switches, not branches.

The hard part is not billing, it is time. A student's placement in a class is treated as a dated fact, not an attribute overwritten each year. Promotion adds a new row and never deletes the old one — so repeating a year can be recorded, last year's invoices still show the right class, and a wrong promotion can be undone.

Bulk promotion is never triggered by a date. The system proposes, the admin adjusts per student, a preview states the numbers first, and only then does it run — all inside a single database transaction, and reversible afterwards.