I am having issue with a current project. We have a table which shows "offers" and also these offers would be applicable to mobile numbers labelled as : Number 1, Number 2 etc as you shown in this image.
*Now some of these offers can be unstackable or cannot be combined together. For this use case , let's say Offer A is unstackable with Offer B & Offer C. Suppose Offer A is accepted for Number 1 & Number 2, then these numbers would show unstackable for Offer B for same lines. So visually we will have to show the selected lines " Number 1 , Number 2" cannot be selected for Offer B & C. I tried to show the unstackable lines with a warning icon to differentiate from other numbers as shown below: (Prototype link)
But I still feel this can be solved in better ways. Is having icon enough to point out that these lines are not stackable or it gets lost in the visual salience. Please if anyone has any ideas to make this better do suggest. Favourite answer will get a coffee from me. :P