CEO Office built a commission calculator with a rounding bug

“It's just a webhook.”— Bastian, CEO Office

Reason:

Because the official form has 48 fields and not the one that matters. Built during an offsite instead of the thing they were asked to build.

Built by:

Bastian, a field technician

Build time:

a long Thursday

Built with:

Google Apps Script

Database:

a database view called temp-old_FINAL_FINAL

Authentication:

TLS is enabled, certificate warnings are ignored

Deployment:

deployed on Sunday immediately before a public holiday

Responsible:

an intern's old manager's manager

Documentation:

a README that begins with "temporary notes"

Security situation:

the last security review happened before the application existed

Future disaster:

It will get backups after the first data loss.

Age: 8.0 years · originally expected to last 3 weeks · 3 owners so far · survived 2 reorganisations · last meaningful change 74 days ago · original builder left 813 days ago

Rated common mostly because: alive 138x longer than intended, the builder has left, older than the department using it.