How do you make a variable work through all screens?

MIT App Inventor Help
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1

So, I was coding my project, but I ran into a problem - I was unable to use a variable which I need to use in all the screens. Please help

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grafik
grafik797×126 9.12 KB

3

None of them are useful, for example "Use TinyDB" - that doesn't work.

4

Most certainly does work!

Show your blocks when using it

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