I use store variable to set as a list to store some text. This function works normally in App preview, but it doesn’t work after downloading it as an ipa file. How can I solve it?
I have tried updating the software and restarting the phone, but these are useless.
When using stored variables you need to check if it is null before attempting to add entries to the list. When you install the app in a new device the stored variable is null and therefore will fail to add to the list.
Best practice is to check your stored variable when starting the app and if = null then initialize to the appropriate value such as empty list in your case then you can use it in a normal way.
There was a topic like this created just a few minutes ago ,check it out How do I use Google Sheets on a device?
Thanks for helping!