Can you clarify what you mean by "it almost never finds the data set I'm using"?
Writing efficient and roubust DI code is craftsmanship, and there's papers and documentation available.
Short, you need to use the DI Studio macro variables for input and output data set, that is the baseline. In this way, any linked table will be automatically "found", given that the rest of the job and the environment as such is stable and maintained in the correct way.
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