I can't add an animal to my party. Why is that?

hit the green + to add them, and make sure you hit "set party" once the pets are in the order you want tthem in to save it.

I don't think they can be added if they're malnourished, and you need to have unlocked the additional party slots to put more than one pet

You do need to have bought a second party slot in essior's haven before you can add a second pet to your party. Then you do it in the party menue under explore.

i do have two slots though

i have two slots, i've hit "+" and i have hit "set party"

which pets are you trying to put in the party?

a morkko and a qitari named Ember

hm, well, you should be able to set them, so I don't know why it wouldn't let you- if you can't get it to work, you might want to post a bug report/contact Krinadon

ok thanks for the help. both of you

The other thing it could be is the pets you want to add are too high a level to use that way. I think its something like you cant use a pet in your party unless its at or below your current user level. You can use higher-level pets as Mission pets, but not Party pets.