I am using single factor apportionment for a VA LLC. It's a retail company. I have selected retail company from the general information drop down on the VA apportionment screen and entered sales everywhere and sales in VA under the single factor apportionment section of the VA apportionment screen. I'm still getting a critical diagnostic.

"The single factor apportionment computation is required for retail companies with tax year beginning date on or after July 1, 2015. VA - Ref #44551"

How do I clear this? I must be missing an input, but can't find it.