Is there in K2 limit the maximum number of articles a user can submit to a category?I need only one article per user limit. Hardly looking for this option with no result.Thank you!

K2 users belong to k2 user groups
The permissions are set at the user group level and you can restrict them there
If they are allowed to add items and publish them, then they can add more than one item by default
There is only one user page per user
You might could customize the user page and set premissions in user group not to add items and accomplish what you are asking for...but it would be a workaround

Thank you!