Perpetua does not allow an ASIN to be in more than one Sponsored Product goal at a time. The first bullet point below explains why.
Generally, if there is an overlap in targets between two campaigns, advertisers might see that the campaigns would "compete" with each other, and so conversions for one of the campaigns may go down.
Amazon will favour the better performing campaign over the other.
If you run two campaigns in the same account, Amazon “randomly” enters one of the campaigns into the auction. Whenever one of your competing campaigns bids higher than the other, it will win the auction, potentially causing your other campaign to get no data.
If you run 2 campaigns on two different accounts, they compete and drive CPC up (eg. If you run an SB campaign on both a seller and vendor account for the same account, they can bid against each other).
If you'd like to add/move your ASIN from one goal to another, you can follow the instructions here.