While working with SharePoint Excel chart and graphs I got an error saying that “The maximum number of allowed sessions per user has been exceeded. This operation cannot be completed” as shown the image below.
We can get this error maximum sessions limit exceeded. By increasing the Maximum Session Per user limit, we can fix this error. We can increase the Maximum Sessions Per User by using the steps below,
Navigate to Application Management page and click on Manage Service Application link in Service Applications section.
Click on Excel Service application in the list of service applications
In Manage Excel Services Application page, click on “Global Settings” link
In Excel Services Application Settings page, “Session Management” section, enter Maximum sessions Per User. By default it is 25.