Pass optional paramter from power apps to power automate

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Posted on by johnjohnPter

1,811 Super User 2024 Season 1

I have a flow with 6 parameters which are all required:-

now i want to make 2 of them optional, but if i do so, inside power apps i will get that the flow expected 4 paramters and i am passing 6 , here is the formula inside power apps:-

ForAll(AttachFiles.Attachments As d,
 
AddandRenameFile.Run(ClientDropdown.Selected.Value,MainCategoryDropdown.Selected.Title,SubCategoryComboboxCanvas.Selected.Title,MainFolderDropdown.Selected.Value,d.Name,
 
 {
 
                        contentBytes: Substitute(JSON(d.Value, JSONFormat.IncludeBinaryData),"""", ""),
 
                        name: d.Name
 
}
))
any advice please? how to pass an optional parameter to power automate?

Categories:

Building Power Apps

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Pstork1 68,717 Most Valuable Professional on at

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Optional parameters in Power Automate aren't really optional. Marking them as optional just means you can pass a null value for that parameter. You still have to pass a record in that location. It would look something like this

ForAll(AttachFiles.Attachments As d,

AddandRenameFile.Run(ClientDropdown.Selected.Value,MainCategoryDropdown.Selected.Title,SubCategoryComboboxCanvas.Selected.Title,{parametername: null},{parametername2: null},

{

contentBytes: Substitute(JSON(d.Value, JSONFormat.IncludeBinaryData),"""", ""),

name: d.Name

}

))

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johnjohnPter 1,811 Super User 2024 Season 1 on at

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@Pstork1

thanks for the info

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Power Platform 1919 1,894 on at

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HI @johnjohnPter,
In Addition to @Pstork1 Response, we can try this approach present in this community thread:
Power Apps Flow Trigger Error: Expected String but got Null

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