When you register/modify product, if you click [Input directly] and put in return address yourself instead of selecting a return address menu, auto collecting is not integrated. 

※ Path to enter return address yourself. 
WING > Product management >Product registration > Delivery and return > Click [Change return address] button > Select [Input directly].
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* Note
-If you input return address yourself, collecting can be requested to other courier that you have not made contract with.

- When additional return fee occurs due to inaccurate/incorrect return address in the product info, Coupang does not compensate for the additional return fee. Please make sure to enter return address correctly.