A .csv file that you must upload containing a list of customer IDs and optionally custom context fields. The CSV must always include a column with the header customerId, which contains the customer IDs you want to target.

You can optionally include additional columns representing context field keys. These columns allow you to attach extra metadata (e.g., name, country, subscriptionLevel, etc.) that will be mapped dynamically based on the header name. Example customer list with optional context fields:

  customerId,offerBank,subscriptionLevel
  be5d3f02f48647e2bd985128e1c4b065,300.00,premium
  be5d78f2f48647e2bd985128e1c4b066,256.00,basic
  be5d3f02a34547e2bd981234wqe34241,220.00,standard

All additional column headers will be interpreted as dynamic contextKey identifiers, and their values will be associated with each customer accordingly.