Im getting the [] symbol in the product line field in powerapps form and this utilizes sharepoint list datasource and its basically a lookup from product list and im getting other data in dropdown along with [] symbol in my dropdown lookup. There is no blank values in lookup list values.
The [] symbol appearing in your Product Line field dropdown in PowerApps (modern control) indicates that PowerApps is not properly recognizing the display value for the SharePoint lookup field.
To resolve this, ensure that the DisplayFields property of the dropdown is correctly set to the relevant column, such as DropdownName.DisplayFields =["Title"] (replace "Title" with the actual column name from your lookup list). Also, use Choices(YourSharePointList.LookupColumn) in the Items property and filter out any blank values using Filter(Choices(YourSharePointList.LookupColumn), !IsBlank(Value)).
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