1.Consider the following sentence, what is meant by cost sales in the short run? cost sales in the short run is negative/positive?

Marketing managers must watch supply availability including supply shortages or delays, labor strikes, and other events that can cost sales in the short run and damage customer satisfaction in the long run

2.How can (a)supply shortage, (b)supply delay,(c)labor strikes affect the ability to build and maintain successful relationships with target customers?