Best approach for triggering campaigns based on Shared List membership changes?

Hello Eloqua Community,

We have a couple of products tied to their corresponding shared lists in Eloqua. When a lead expresses interest in one of our products, they are added to the relevant shared list in Eloqua. This data comes from an external source and is pushed into the shared lists on a daily cadence.

Here’s the use case I’m working on:

• If a lead shows interest in Product X, they are added to Shared List X and sent to Campaign X with targeted emails focused on Product X.
• Similarly, if a lead shows interest in Product Y