Keep the following balanced to keep your Bitizens employed and maintaining a steady flow of Imperial Credits: food, service, recreation, retail, residential amenities. This is important as it can become expensive to add floors.
Help a VIP to be delivered to a certain level to earn a valuable service from them.
Focus on stocking low-tier items if you are playing actively to refill them if needed. Stock high-tier items when you have less time for the game and require it to run unattended for some time.
When requested to find an honored guest or an invading rebel, tap the floor they are to earn Imperial Bux.
Only give Bitizens jobs they are good at to get faster restocking.
Bitizens often ask you to operate the elevator, which will make you earn extra Imperial Credits. The elevator can be upgraded to move faster, but this requires Imperial Bux.
A maximum of 3 Bitizens can work on a level, and each of them is responsible for stocking a specific item. Low-tier items are stocked the fastest, sell quickly, but do not earn a large amount of Imperial Credits. Higher-tier items require more time to stock, but appear in higher numbers and can earn more Imperial Credits.
All Bitizen have a dream job. When assigned to a dream job, you will be able to order twice as much of the stock that particular Bitizen sells.