I have two packages. Call the first SuperA (it has steps to execute other
packages only) and the second SubB (which has Scripts, Datapumps, and Data
Driven Queries). SuperA executes SubB; SubB has code which controls the
execution of datapumps depending on txt files being present or missing. SubB
runs fine when executed by itself. But when executed using SuperA, steps
within SubB fail with messages like: "SubStep 'StepName' failed with the
following errors". There are no errors listed, because a script in SubB set
ExecutionStatus to Complete (when a file is missing or has length zero).

So, my question is "How do I get SubB to execute properly when invoked by
SuperA?"