Error: The URL must have exactly five forward slash (/) characters..
This issue applies to Dynamics NAV 2013 (and higher)
Issue
When attempting to perform a drilldown, the following error message is displayed:
Complete text of error message is:
The URL must have exactly five forward slash (/) characters before an optional question mark (?) character.
Cause
This is an error returned by Dynamics NAV when it is unable to locate the NAV RoleTailored Client (RTC).
Resolution
When using the RTC for drilldown, you must provide the name of both the RTC Server and the RTC instance in your Data Source Settings.
You may need to contact your system administration to get this information.