Hi,
I have a SharePoint list with a choice field and I am trying to Patch the combo box selected values from PowerApps to SP list. Below is the code I am using but it doesn't seem to work.

I am trying to save all selected items from Combobox to choice field in a SP list. Choice field in SP list not enabled for multiple selection values because if I enable it I am receiving an error on the Default property of the datacard of the combobox.
Items Property of Combobox - BE-Market list (column-Title)
DefaultSelectedItems - Parent.Default
Default of the datacard - ThisItem.MarketList
Please assist and let me know if you have any further questions.
Thanks,