Static user custom properties ingest URL

This endpoint allows you to push static audiences, represented by user custom properties, directly to Kevel Forecast. When you create a new ingest URL, we'll give you back a signed URL for an Amazon S3 bucket.
The file needs to be in JSON Lines format, containing an entry per user with the following format:
{"userKey": <user-key>, "customProperties": <json-object>}
For example:
{"userKey": "1234", "customProperties": {"favoriteColor": "blue"}}
To reduce the size of file transfers, Kevel recommends delivering the file gzipped. With this compression, the file extension must end in gz or gzip, e.g., static-audiences.jsonl.gz.
All user custom properties found in the file will be considered and saved as static. See the Configure user custom properties endpoint for more details on how to manage the set of static audiences and Static Audiences page for more details on this feature.