“Transaction declined: 15005-this transaction cannot be processed” this message many PayPal user have see in mobile display when they do transaction thought PayPal. This is not a PayPal system error . this error come when mistake is done by user hand . in this blog I will tell you why this error come what is the mistake which you are doing during PayPal transaction. I will also suggest you some solution how to solve this error. so know more about error code 15005 and to know how to fix this error come to my blog.