If you want to use improvements brought up with SAP enhancement package 6 for the respective SAP ERP 6.0, all the enhancements must be stimulated because of business functions. If you want to use all the related enhancements you must have to upgrade all the dedicated software mechanisms of your SAP system. For using this you must have knowledge about the business functions that you want to use or that might help you confirm or install all the related technical usage to allow the business function. For this you must have SAP solution manager 7.0 system having minimum SP stack level 23. Please make sure that the system landscape is preserved accurately with in your SAP solution manager, if you want to preserve the system landscape you have to use the transaction SMSY with in the SAP solution manager system.
If you want to permit the business function you must have to install a technical usage. A logical grouping of ABAP software components are known to be a technical usage, all other components like java software components or XI content or might be portal content, Please make sure that every single business function are assigned to a technical usage. You must have SAP ERP 6.0 system in place or if you want to upgrade your system landscape to nap ERP 6.0, this can easily help you to implement a technical usage.
Hope this article might help you to enhance package 6 for ERP 6.0