Effect of injecting sculptra for butt lift in deep dermis instead of subdermis

Hi, I had a consult with a doctor who told me sculptra/lanluma needs to be injected in the deep dermis for the buttocks. However, I read on the internet that it needs to be injected in the subdermis (fat layer). Will it harm the results if injected in the deep dermis instead? Or will there be no effect? This is the only party in my area offering the treatment, unfortunately. And is the damage by the cannula to the skin in the deep dermis significantly greater or similar to the subdermis? Thanks