Hi shill,
I probably could've explained it better. I hope this helps.
Say you have a table with subjects and various lists. You as subject 12345 exist in the list 1 which is 'campaign 1'. Campaign 1 has 5 touchpoints to it spread out over 5 weeks. You have a date added of last Wednesday. You also exist in the same list table in list 999 which is 'DNC' and you have a date you were entered there as 3 Wednesdays ago.
This list table is all I'm using in the informaiton map for this campaign. When I get to the split node I can only select one field to split by which is the week of the date you were added. If you are 1 week old you go into the 1st touchpoint segment (cell). If you were added 2 weeks ago you would go to the 2nd week segment. After 5 weeks you would not be receiving any more marketing material for the campaign.
Since the split node operates on one field it doesn't have anything to limit it to the list selected from the initial Select node (list 1). It finds you also in list 999 from 3 weeks ago so you pop up as a duplicate subject that lands in the week 3 segment.
Now, reverse the entry points to the lists. Say you were added to the campaign list (list 1) 3 weeks ago and the DNC list 1 week ago. If you you a prioritize node how can you give it an order to keep the subject from the list instead of DNC? If it's only operating on week number it won't know to ignore the week number for any other than list 1.
If a Refine Output as we see in the Export or Communication nodes we could lock it down to the subjects from that list.
Thanks,