hi YR Nasir,
1,Open the different DC's deployed application iview.
2.Copy the PCD Link
3.to write the pcd link to your first application button.
Sample code
String parameters = "salesorder="+SO;
String target = "ROLES://portal_content/com.stylespa.EP_Custom_Application/com.stylespa.All_SD";
WDPortalNavigation.navigateAbsolute(target,WDPortalNavigationMode.SHOW_EXTERNAL,WDPortalNavigationHistoryMode.NO_DUPLICATIONS,parameters);
finally u click the button page automatically go to different DC's deployed application.
Regards,
Antony
9750551226