Planner - Can't submit more tasks for a specific person


we are currently using Planner in our company and we have encountered a problem, that we can't assign more tasks for one of our colleagues. We can assign tasks to anyone else and he can assign tasks to himself, but noone else can assign to him. If anyone tries to assign a task to him it says the following warning "You've run out of space! Delete some old tasks and projects to continue creating new ones". Haven't anyone else encountered this problem too please? Is there please any solution for this problem?

We have checked the SharePoint storage, but it doesn't seem to be a problem with that. Especially since it does this only for one person.

Thank you so much for any answer in advance,



Question Info

Last updated October 30, 2019 Views 1,119 Applies to:

Hi Ondrej,

The updates from the escalated case show that the issue has been solved. 

Therefore, I’d like to write a summary for others to seek out the information easily.



When assigning tasks to one specific user, you get the error message “You've run out of space! Delete some old tasks and projects to continue creating new ones.”

Root cause:

Generally, one user account can be assigned with 250 tasks. In your case, the tasks in the affected user account have exceeded the limit.  So you cannot assign new tasks to this user.


Delete some closed tasks and now it works fine.


If you have any other questions, feel free to post a new thread. We will continue to assist you from there.



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