Generic to brand (product coming not yet on WH)

Hello

Ive created a listing GENERIC, and my products are coming to the Amazon WH with all the labels. The thing is, i made a mistake and i had to create the listing as BRAND (on process). Is there any way to modify by system, by eliminate the generic listing, and creating the other one, the labels can work anyway? or i have to relabel all products? because ive been reading that the only way is to take them out of WH, relabel and send them again... but the difference is that my products didnt arrive yet.. thank you!