Thanks. Yes- I had already contacted them and waiting on further direction. Their position remains that unless there is some type of identifying number, code, info, etc. that comes from shopify, there is no way for them to separate. 

Just bumping this thread as I have the same issue currently. Any ideas out there?

I currently use Avalara (avaTax) for sales tax calculations and returns . Challenge is there doesn't seem to be any discernable difference between order number info that comes from Shopify to Avalara, based on the sales channel. I primarily sell on T...

I use avalara. Challenge I have currently is there doesn't seem to be any discernable difference between order number info that comes from shopify to avalara, based on the sales channel. Meaning, I need to find a way to identify tiktok orders in aval...