The Job Designer's Repair button () tells the user that various errors have been found within the current workflow. Only then is this button visible and provides information about the errors found in the lower area of the designer.
Among other things, the repair function checks for dead references, endless loops or missing connections within the jobsteps and attempts to repair them.
This check always takes place in principle. As already explained, the user is only informed in the event of a fault and has the possibility to use the button to correct the discrepancies discovered.