Migrating applications from QlikView? to Qlik Sense?

All QlikView applications since QlikView Version 8 can easily be migrated. However, the conversion is only partial. The data and the script will be converted, but nothing from the layout is used. Perform the following steps to migrate applications:

1. Move the QlikView app—the .qvw file—to your Qlik Sense Desktop app folder at C:\Users\<user>\Documents\Qlik\Sense\Apps. The file will then appear in your Desktop hub as a legacy app. Its name will have (qvw) after it:
   
2. You can now open the app and see the data model and the existing script.
3. Once you make changes, you will need to save these. This is when the conversion takes place. The old app with the new changes will be saved into a file with extension .qvf, and the old .qvw file will be renamed to *.qvw.backup.

Changes to the script

You might also need to make changes to the script. The structure of the script can remain the same, but all references to databases and files should be changed. In Qlik Sense, you need to use the data connections library. Hence, you must create the library entries that you need, and then replace connect strings and file references with references to the library.

Changes to the user interface

The modern layout in Qlik Sense with responsive design has very little to do with the old static layout in a QlikView app. A consequence is that you will need to recreate all objects—all charts, lists, and tables. In fact, you will often have to rethink your entire layout. If you are deploying your apps in an environment where users have tablets or smartphones, you would probably have had to do this anyway, since the old style QlikView apps display poorly on small screens.

The best way to do this is to have both Qlik Sense and QlikView displaying the same app simultaneously. Then you can go through the app sheet by sheet and decide how to design your new Qlik Sense app.

The syntax for formulas has not changed, so it is advisable to use copy and paste when moving complex formulas from QlikView objects into Qlik Sense objects.

Currently, there is no support for migration in the Qlik Sense server. So, if you want your old app on a server, you need to first convert it using Qlik Sense Desktop and then import the new file to the server.