Change of data source in existing app

[mesan123]

Dear Power Apprs experts, 

One question please. What is the best approach to replace a data source in the existing app by another with completelly same table structure (i.e. replace SharePoint list). 

I have an app with a connected contact list which is saved on SharePoint as SP list. I use the contact list as Lookup data source for filling a couple form fields. Now I would like to use another (testing contact list) and apply it in the app instead of the previous one.

I know I can update all Lookup formulas in form fields manualy after the 2nd contact list is added as connector but I was wondering if there is a more elegant solution how to replace the contact list in all form fields in one step. 

Old contact list

New contact list (both active in the App data)

example of an form field Look up function with the old Contact list

LookUp('Contacts List', Title = varRegion && Activity = varActivity ,'Finance Director')

example of an form field Look up function with the new Contact list

LookUp('Contacts List_1', Title = varRegion && Activity = varActivity ,'Finance Director')

Thank you for your tips,

Mesan123

[FCGALLEG]

Hi Mesan123,

Please, check this thread, I hope it can help you:

https://powerusers.microsoft.com/t5/Building-Power-Apps/how-to-change-the-data-source-in-powerapps/t...

Regards,

JAvier.