So ive recently gotten back online after a few month break, and i tried to use my desert, jungle, and grassland background on one of my pets and its none of them are working, was there an update on a limit or something while i was gone? I have no clue, kinda disapointed that i cant use em but oh well :\

Is the pet adult? Does it already have a background? It helps to link to the pets you attempted to add apparel to and explain the exact steps taken or it's hard to help.

I had another thought- mobile. Apparel for me doesn't display correctly on mobile if it's someone else's pet, but does fine on PC.

The pet is an adult, does not have a bg. The pet was a Lykos, clicked on his profile, went to warehouse, clicked on tundra background and it didnt say i was able to use it. only give, sell or destroy. yeah im on pc

Go to pet, scroll down. Next to Stats, Genes, Tactics, there's a Wardrobe tab.

Once there, select the background tab on the left, click the bg you want then equip it.

Once it's equipped it's permanent.