Deeplinks - How to use the return variable ?

Summary:

Deeplinks - How to use the return variable ?

Content (required):

Hello,

I use this deeplink :

../fscmUI/faces/deeplink?objType=PURCHASE_ORDER_APUSER&objKey=poHeaderId=300000425217318

It redirects me to a new page (in a new tab) "purchase order" with the detail of the purchase order as wished.

When I click on the "Done" button, it redirects me to the "Invoices" page.

I would like to go back to the page with my deeplink in order to be able to look again for another PO.

I've seen that it should be possible using the variable "returnAppURL" or "returnApp" in the deeplink url :