I can't receive notification on new topicis because I need my old subscriptions to expire. How can I do this?

[Giulia]

Look at the attachement file. How can I solve the problem with expired subscriptions?

[waldemar.hersacher]

Each time you create a new subscription either by asking or by answering this subscription will expire. The time the subscription expires depends on how often you want to be notified. I set the notification to "Never" so it expires immediatly and I look for answers/comments each time I visit the developer zone. If you set it to another value you will be notified over a period of time. Use the Edit button to renew the notification period.
Your subsricptions will never be lost. I have a lot more subscriptions and they are there for a long time for topics which have some solutions which are difficult to find again.
If you do not receive notifications anymore check the settings of the subsription using the Edit button. Maybe your email address has change
d then you have to change your profile. In this case you need the assistance of NI because you are identified by your email address.

Waldemar