Product Structures > Setting Up a Product Structure > Effective Date and Maximum Levels
  
Effective Date and Maximum Levels
The Effective Date and Maximum Levels filters let you improve performance by limiting the number of records retrieved from a product structure browse.
When you specify an effective date, the browse returns only those records that are valid for that date (the effective date occurs between the products’ start and end dates). The default is the current date, and this filter is only available when you are in New mode.
The Maximum Levels filter returns a specified number of levels for the root product structure. When set to blank, the server returns all levels, and the maximum level is 25.
Note: By using these filters, you may create duplicate or cyclical structures, which are only validated when the structure is saved. This may cause the system to display a large number of error messages when saving.