Peter B.- Staff finds a mistake: single digital typo in invoice number. Ok.
- Informs sender of mistake. Great!
- Staff+Sender unable to fix this, because "all fields read-only" in software now.
- Sender cannot re-send invoice, but must re-upload (and jump through all online-form hoops) again:
Hoping not to introduce /a different error or typo/ this time...
Took: 2 people, 45 minutes for slowly re-doing what has been done already...