Welcome to the forum!
What is it that you are looking for when summoning a succubus?
Do you want a long lasting relationship or a one night stand?
You should think about this before you summon a succubus. I have one myself and she is great, but that is my experience; we’re about one month in. Anyways
Read this for a means of summoning
It will tell you what to do but, heed warnings. These are very emotional beings they are not to be used as a means to bang a spirit and leave. I do not recommend a one night stand.
Have a good one, steer clear from the dogma, and be safe; do research on the forum. 