If I post 10 articles (for example) to sell on Marketplace and a user bought it. I can not know about this transaction -UNTIL I sign-in forum and check paypal balance-increase shown in right-upper corner. -OR UNTIL I sign-in paypal account and see a new payment arrived or balance-increase And I can not know which one article is sold. I have to go through all threads of articles posted for sale and see which one is missing in the list. The missing thread from list means it is sold because the sold thread is taken out of the list. So, please the FORUM should create a NOTIFICATION about the article bought by which user. And that NOTIFICATION should be sent at my registered email address.
PayPal should send you an email about sale instantly that includes the name of the article pack you sold.
But DIGITALFORUM must not put its responsibility on other website that someone other does the job of this FORUM. Application of this NOTIFICATION will improve performance of this FORUM and will not cause any negative effect.