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My needs is to check if other user is standing on page, so in this case i cannot edit data on it. 
 Is there some functionality to check that the record summary page is in use right now? 
 Thanks for help!

Stewart Burchell · Accepted Answer

A typical pattern would be to consider a Record Summary page as Read Only, and to provide a Record Action to allow users to update the record's data. A Record Action will start a process and there are two different ways to prevent other concurrent updates: 
 
 you can make the visibility of a Record Action dependent upon whether there are any instances of the same process in flight (you would need to use a Process Report to determine this). Note that there is a small window of opportunity for two users to start the same process where the Process Report will not yet return the necessary data 
 you can make use of a Locking solution. The one I have used in the past is this: https://community.appian.com/b/appmarket/posts/pessimistic-locking . This is by far the better, more secure scalable solution, which can be re-used across all of your applications.

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