Transformed Robinsons-May stores will make their official debut as Macy’s units on Sept. 9 as parent Federated Department Stores rolls out a series of special events to mark the transition. The conversion will be marked by an electronic gift card giveaway, a charity shopping event and a 23-city tour of the Macy’s Thanksgiving Day Parade, among others. For the Macy’s West division, headquartered in San Francisco, there will also be some ribbon cutting events, receptions and fireworks events at various stores. Last year Federated completed the acquisition of May Department Store Co., which included Robinsons-May and began plans to convert the Robinsons-May stores it did not divest to Macy’s units. Following the conversion, the Macy’s chain will include about 800 stores in 45 states.