2 number items following each other

Good morning all,
i have to number items

Number number_test1 "test1 [%.2f]" 
Number number_test2 "test2 [%.2f]" 

if the state/value of number_test1 is changed I wann also change to the same value item number_test2 like the follow profile? but how???

Thanks for your help

If you haven’t linked any channels, you can’t use the follow profile.
You have to do it with a rule:

rule "Value test1 to test2"
  Item number_test1 changed

Good luck

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