If you have implemented drill down in the mode “Open in Same Tab/current tab” then in the child report you will have to add a back button. Clicking on the back button will open the parent report once again. For navigation from the child report to parent report after drilldown, back button script has been given.
Open the child report and go to Customize tab. You can see a “Back” button script as shown below.
Double click on the back button script and select the parent report that should be opened when a person clicks on this.
Apply the script by clicking on the small tick.A back button will appear on the top left corner. This button can be clicked on to go back to the parent report.
