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Duplicate check in Collection

Hello all,

 

I'm trying to make a barcode input check for duplicates before writing to a collection with the following formula:

 

If(
    BarcodeScanner1_1.Text exactin ConsigmentTable.Serial_Number,
    UpdateContext({MessageBoard: "Duplicate Serial, please check"}),
    Collect(
        ConsigmentTable,
        {
            Serial_Number: BarcodeScanner1_1.Value,
            Checkedby: User().FullName,
            Scan_Date: Today(),
            Quantity: 1
        }
    )
)

 

However it seems to always go straight to the FALSE part of the statement. 

Also did try with:

 

If(LookUp(ConsigmentTable, BarcodeScanner1_1.Text in Serial_Number, "OK") <> "OK", ...

But alas, same thing. If anyone has a suggestion, I'll greatly appreciate the input!


I did try the suggestion listed here:
 https://powerusers.microsoft.com/t5/General-Discussion/Prevent-duplicate-values-in-a-collection-data...

1 ACCEPTED SOLUTION

Accepted Solutions
Community Support
Community Support

Hi @LordsBH ,

 

In your Lookup formula, may I ask what is this "OK" referring to? Is it one of the column's column name of ConsigmentTable?

 

Try to use below formula instead:

 

If(!IsBlank(LookUp(ConsigmentTable, BarcodeScanner1_1.Text=Serial_Number)) , ...

 

Regards,

Mona

 

 

Community Support Team _ Mona Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

2 REPLIES 2
Community Support
Community Support

Hi @LordsBH ,

 

In your Lookup formula, may I ask what is this "OK" referring to? Is it one of the column's column name of ConsigmentTable?

 

Try to use below formula instead:

 

If(!IsBlank(LookUp(ConsigmentTable, BarcodeScanner1_1.Text=Serial_Number)) , ...

 

Regards,

Mona

 

 

Community Support Team _ Mona Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

It worked like a charm, @v-monli-msft, thanks!

 

I had to change the BarcodeScanner1_1.Text to BarcodeScanner1_1.Value, but it did work Smiley Happy

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