I m trying to create Distribution certificate but there is disable icone appers in itunes so how can i create distribution and developement cirtificates?
You have reached to the limit of maximum number of "Ad Hoc Distribution Certificates".
As per I know the limit of certificate is 3. If you want to create new certificate, you must have to revoke old certificate.
if you want to distribute the different app, Then you have to create different provisioning profile not certificate.