Abbreviation of 販売促進 (はんばいそくしん). Used in business and marketing to refer to activities that boost sales.
See also: 販売促進
We are planning a sales promotion event for the new product.
I sent the sales promotion materials to the client.
We decided to carry out a sales promotion for the new product.
We're running a sales promotion campaign heading into summer.
We budgeted for promotional expenses for next term.
We handed out promotional items in front of the store.