As a result of globalization and the interconnectedness of markets, direct selling has become more popular. This is because it provides an opportunity for people to make money by signing up as users and recruiting other members to help them make commissions on their purchases. When a person likes to join direct selling business, he may go through a problem called concurrency registration problem. It is an issue that prevents some people from registering with direct selling in order to get into this business. When the user has attempted to register, they have been met with a message that states "User already exists." This prevents them from getting past the registration process and continuing their work.

Network marketers in the industry are faced with a problem that can occur when trying to register for their business. The Concurrency registration issue is when more than one person tries to enter the registration process at the same time, which causes an error message to pop up on your genealogy tree or network structure for no reason whatsoever. When too many people begin rolling into the network during a registration period, this issue arises from anywhere and it will interrupt the registration process.

In order to avoid the problem of concurrency in a direct selling system, one can make use of the queue system override method. It is not only an effective way to solve the problem but also helps in creating queues and priority lists with different classes or levels. This will help each member have their own time slot and they won't be frustrated with waiting endlessly for their turn.