Correction and return to vendor

 Hello Experts

What is the difference between correction and return?

Can you please share your experience for the below example

Let's say my user has created a receipt of 15 instead of 10 and to fix that a correction has been created ...do you recommend correction or return to vendor? And when it is correction do they need to input -5 or 10  in quantity field? 

Thanks a ton in advance

Regards

Dilip