activating on audible syncdoes not work

Audible sync downloads all audible books to my Sandisk clip sport plus player When I activate is states transfer complete but when I go to play book it states needs activation. I was on phone twice with support and they have no answer.

Hi @witchypoo6850 ,

Have you opened a Support Case? If not opened, for more information, please contact the SD Technical Support team for best assistance and troubleshooting: