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Power Automate desktop | Operator '-' can't be applied to 'Text value'.

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Posted on by mohashinBhyian

In one of my Power automate desktop flow, I am trying to use substract (-) operator. But I cannot use this operation inside the for each loop. Why I am getting this error and how can I solve this?

I tried another option. I tried to use as below approach. But still, I am getting errors. whenever I tried to subtract 2 from each item of For loop, I am getting the below error.

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Power Automate Desktop

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Ezhilvannan_V 178 on at

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Hi @mohashinBhyian Please convert your currentitem using convert text to number action, text value you cant subtract.

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Srini007 3,479 Super User 2026 Season 1 on at

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@mohashinBhyian

Try as below

CurrentItem is a String and you can't use - to subtract from a String
That's why you need to Convert the string to Number and then you can subtract

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If this helps, then please consider Accept it as the solution to help the other members find it.

Thanks,
Srini

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