The following fields are optional:
The names above refer to the Episerver Personalization RSS feed format. If you are using a custom XML or delimited (CSV, tab etc.) file, you can also add optional fields to your feed, although the actual names of the elements/columns in the feed can be different. They will be mapped by our technical integrations team to the corresponding fields in the Personalization database when configuring the feed imports.
For more information, please refer to the latest feed specification in this article.