No is a tricky word, because you always want to be perceived as a can-do individual. In general, you should try to preempt situations in which you will have to decline an assignment.
Broken business processes can cost your business a lot of money in terms of time and actual cash that comes in. And it can send customers running to a competitor.
It’s tough to ask for help! As a manager, you might feel like you’re supposed to have all the answers. But asking for help isn’t a sign of weakness.
Teaching your employees to be self-sufficient benefits the productivity of the whole team.