Adding random values in column depending on other columns with pandas

I have a dataframe with the Columns "OfferID", "SiteID" and "CatgeoryID" which should represent an online ad on a website. I then want to add a new Column called "NPS" for the net promoter score. The values should be given randomly between 1 and 10 but where the OfferID, the SideID and the CatgeoryID are the same, they need to have the same value for the NPS. I thought of using a dictionary where the NPS is the key and the pairs of different IDs are the values but I haven't found a good way to do this.

Are there any recommendations?

Thanks in advance. Alina