Finance built a commission calculator with a rounding bug

“It's basically a spreadsheet with buttons.”— Plant Manager

Reason:

Officially because the retention policy is "do not delete anything". Built during an offsite instead of the thing they were asked to build.

Built by:

Jens, a controller

Build time:

27 minutes

Built with:

Power Apps, licensed to one employee

Database:

a column called misc

Authentication:

TLS is optional because it is internal

Deployment:

SSL certificate expires in 15 days

Responsible:

Ravi, according to nobody except Marco

Documentation:

an architecture diagram containing a box labelled "magic happens here"

Security situation:

security is handled by being "internal only"

Future disaster:

It will email the entire customer list to one customer.

Age: 123 days · originally expected to last 14 days · 2 owners so far · survived 1 reorganisation · last meaningful change 19 days ago · original builder left 120 days ago

Rated common mostly because: €91k per year, nobody owns it, the builder has left.