Return Original Qty field In Return order

HI Masters,

I am working on Nav 5.0 sp1.

Purchase return order - Functions - Get posted Documents Line to reverse - Return Original quantity.

Even i gone through the help of this field i could not understand what is the use of this field.

So Experts please explain the use of the field with a suitable example .\

Thanks in advance.

What is it you do not understand about the help? It is pretty clear. I have not tested it but I understand the concept by reading F1.

As an example test this - Buy 100 of an item. Sell 20 so the remaining quantity of the ILE is 80. Create a return order, select the option and DO NOT tick the return original quantity. Then do it again, but tick it. Notice the difference which therefore explains what it does!