Customized first click attribution model
I was looking to change the attribution model from last click to first click in my GA. I am aware that there is an option to do it right away. But I want to have a little customization on it.
Lets say I have source/medium as below:
I want that every transaction goes under source by first click method. But in case of affiliates if the last source/medium has affiliate in it and first source/medium is either direct or google/organic in that case the conversion goes to affiliate only.
I wanted to know how can I do it? Hope I am able to make my question clear.