title: Error in Using Association Rule on SAS Enterprise Miner
body: <p>I just started using SAS EM. And I imported an excel file with three variables into SAS EM: Customerid, Item and Sequence. Sequence stands for the sequence of transaction in this person's shopping history). </p>
  
  <p>I linked the file import node with association node. However after I ran the association node, it kept throwing out error messages like this: "Must have at least 1 transaction data set(s)". It's the same error message with market basket analysis node. Any suggestions?</p>