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Power Platform Community / Forums / Power Automate / Concatenate, Subtracti...
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Concatenate, Subtraction in Power App form

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Posted on by Prem4253 697
Hello,
 
I'm coming across an errors where I'm not able to Concatenate 2 fields into one.
 
Also tried doing subtraction from 2 fields. Am I missing some setting within Power Apps?
 
 
 
Please advise.
 
Thanks,
Prakash
Categories:
Power Automate Desktop
I have the same question (0)
  • David_MA Profile Picture
    David_MA 15,211 Super User 2026 Season 1 on at
    It looks like you are using the new designer, which I do not use. I don't think the expressions are different between the old and new, so the first issue is that Concatenate is not a valid expression and you are not referencing your dynamic data correctly. If I wanted to concatenate a currency value with the total cost of a request for example, the expression I would use is concat(outputs('Get_item')?['body/Currency/Value'],string(outputs('Get_item')?['body/TotalCost']))
     
    Here you can see the expression is concat and it references the outputs from two dynamic values. My expression returns:
    For subtraction, the correct syntax of the expression would be something like sub(outputs('Get_item')?['body/TotalCost'],100) where the first value is the minuend, and the second value is the subtrahend. 
     
    This expression returns, for example:
  • David_MA Profile Picture
    David_MA 15,211 Super User 2026 Season 1 on at
    Sorry, I just noticed you are referring to Power Apps. I don't use them at all. My post below is in regard to Power Automate expressions. I don't know if the same applies in Power Apps. You may want to post your question in the Power Apps forums instead of the Power Automate forums.

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