I am beginner and using Nintex Workflow 2013 for Sharepoint. In work flow design I dont see the action Query XML as below screen shot. Help me with this !
If you are referring to Nintex Workflows for On-Premise SharePoint, make sure the "Query XML" action is in "Allowed workflow actions" as shown below.
Go to CA --> Nintex Workflow Management --> Manage Allowed Actions --> make sure "Query XML" action is selected.