My usual logic is that automatic advertising should be started first. On the basis of automatic advertising, I may start keyword-oriented advertising of artificial advertising according to my own grasp and arrangement of product keywords and the data report of automatic advertising. But for the product-oriented advertising of artificial advertising, my experience is that the effect is very poor and it is not particularly necessary.
When it comes to automatic advertising, sellers will ask how to set negative keywords. (Click to view >> In this regard, my opinion is that no matter how familiar I am with this product, it is not recommended to set negative keywords at the beginning. When the advertisement starts, you don't have to say anything negative. If the advertisement runs for a period of time, the words "two highs and one low" (high exposure, high click, low conversion/no conversion) do exist. Analyze again, these words really don't match your own products and consumer groups. You can deny these words, otherwise, don't deny any words easily.
If you want to deny a word, it is recommended to choose an accurate way to deny it.