- I need someone to send me some information they have at their desk, and I think of it while watching my favorite evening television show, so I text them.
- I want to get together with someone in a week or two, so I text them the date.
- I remember that I need to give someone some info they need for a task or meeting, and I text it to them off-hours.
Texting in this way can also be a way of shifting the responsibility from procrastination to someone else who may or may not respond to the text. And if they don't review old text messages when they get to work, the blame for missed deadlines, etc unfairly reflects on the person who may have never seen the text at a time they could respond appropriately.
When making requests that have ramifications, always use email rather than text messaging.