You can override all parameters for Web items and all Web template parameters. At the time of execution, the relevant parameter value is specified for Web items, corresponding to the sequence:
URL -> Web Item in Web Template -> Reusable Web Item -> System Default.
This is also valid for the Web template parameters. Here the specification occurs, according to the following sequence:
URL -> Web Template Parameter -> Reusable Web Item -> Web Template Parameter defined in SAP Customizing Implementation Guide under SAP NetWeaver ® Business Intelligence ® Reporting Relevant Settings ® BEx Web ® Set Settings for Web Templates.
Example of the WIDTH (width in pixels) Web item parameter for the Analysis Web item
Example of the WARNINGS_VISIBLE Web Template Parameter
General Rules for Overriding Settings
The following figure shows the priority rules when overriding Web template parameter and Web item settings.