Pelion Device management tab was not enabled for project in mbed online compiler

Hi Team,

Pelion Device management tab was not enabled for project in mbed online compiler.
if i import the any latest code from portal, for those projects i am able to see the enabled tab.

but if i import any project from my system , for those Pelion Device management tab was not enabled.

What may be the issue?

Thanks & Regards
Praveen.Thota