Migrate Marketing Contact Lists

1. Authenticates to the org and opens the Marketing Cloud Advanced app. In one case it had to try a second "Marketing" entry in the app launcher because the first was the standard marketing app.
2. Prepares CSV files for the target Marketing Objects.
3. Tries to load them through the Data Management page. In that sample the page timed out on every attempt, so no Marketing Object was created and the task paused.
4. In a broader session, builds a campaign with tiered members and email templates, deploys a record-triggered flow with tier decisions and escalation, and creates an Actionable List of high-scoring leads.
5. Loads a CSV of contacts through Bulk API 2.0 and confirms they appear in Marketing Cloud Advanced under New This Week.

Sending email to the imported contacts through segment-triggered flows is covered in Build Marketing Audience Flows.