Why can I not update the 'Sold by' user in the Commissions tab?

If you have a 'Standard' user access and are trying to update who sold a specific item within an order, and an error message with a small error symbol appears, it’s because the order has already been checked out!

Once an order has been checked out, when you have a 'Standard' user access, no edits can be made and this includes editing the commission on the order. If you want to change the commission with a 'Standard' user access, you MUST do this before the order is checked out!