When using the Go to Related Record script step, is there a specific error
code to look for with Get Last Error, for example if there are no related
records? I am trying to figure out what happens if there are no related
records :

I am using GTRR, and then importing the related records into another table.
How do I ensure only the related records (matching the current record) are
imported? Will GTRR still go to the layout (in related table) specified in
this command, even if no related records? Will the found set in related
table be nil records if no related records, or will it comprise all records?

Much appreciate any advice on checks to use with this script step.

Regards
Peter