that will do

phrase2

1. •
   said to confirm that something is suitable in quantity or in a particular quality

   • “That will do me nicely,’ he told the others. ‘I don’t like crocodiles — too many teeth.’ — 2009
2. •
   an interjection used to tell a person or animal to stop what they are doing

   • Your dog should know (at least) how to down, stay, and come, and should also know "That Will Do" (or “OK")..."That Will Do": used to release the dog from work & call it off the stock. — 2009