Maintaining Promotion Data in a Multiuser Environment 
Use
Several people can maintain data in a promotion at the same time. This is useful when several departments are involved in the same promotion, or when several people within a department share duties.
Activities
Maintenance is done on an article basis:
Only two screens are available when you work in this mode: fast entry and article planning data. This is because some screens refer to the entire promotion rather than specific articles (for example, themes or total planned revenues).
Two people cannot work on the same article at the same time. If someone has checked out an article, and you try to check it out, the system generates an error message. Once the other person has saved his or her changes, you will once again be able to access the article.
If you select a generic article, the system automatically includes all its variants. That is, no two people can work on variants of the same generic article at the same time.