The aim of this research is to determine the effectiveness of promotions on the level of sales of halo card products at PT. TELKOMSEL Sul-sel Makassar. The sample in this research is total promotional cost data and sales level data. The analytical method used is correlation coefficient, linear regression. This shows that there is a very strong and positive relationship between the amount of promotional costs and the increase in the number of halo card sales. This can be seen below, namely r = 0.99. This is based on if r is equal to 1 or close to 1, the relationship between X and Y is very strong and positive..
