Sales built a commission calculator with a rounding bug

“Nobody would want this data.”— Finance Business Partner

Reason:

Mainly because the retention policy is "do not delete anything". Quietly rolled out to three countries.

Built by:

Chen, a product owner

Build time:

one weekend

Built with:

Power Apps, licensed to one employee

Database:

a nightly CSV export emailed to Petra

Authentication:

SSO, but only for Daniel

Deployment:

running with 94% disk usage

Responsible:

the person sitting closest to the printer

Documentation:

a README that begins with "temporary notes"

Security situation:

the encryption key is in the source code

Future disaster:

It will be used for payroll by accident.

Age: 12 days · originally expected to last 7 days · 1 owner so far · survived 1 reorganisation · last meaningful change 12 days ago

Rated common mostly because: 3 departments depend on it, 1 accidental connections, 13% chance of becoming business critical.