At short notice
Definition 1 of 1
Pro Tip 1/3Urgency Connotation
The phrase suggests an urgent situation requiring quick action or decisions. 
He had to leave at short notice due to a family emergency.
Pro Tip 2/3Potential Stress
Using 'at short notice' may imply a certain level of stress or inconvenience for the people involved. 
I had to find a babysitter at short notice, which was quite stressful.
Pro Tip 3/3Work Context
Often used in a professional setting to describe sudden meetings, deadlines, or changes. 
Our boss scheduled a conference call at short notice, catching us off guard.