Fix for the lookup error in Microsoft Dynamics 365 ‘More than one form was opened…’

After implementing lookup in D365 I encountered an error “More than one form was opened at once for the lookup control” while interacting with control as shown below. Lookup Code FormControlEventHandler(formControlStr(SalesTable, LC_AssetGroup_LC_AssetId), FormControlEventType::Lookup)] public static void LC_AssetGroup_LC_AssetId_OnLookup(FormControl sender, FormControlEventArgs e) { Query …

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