If you use a raw data export to the Webtrekk SFTP download server, the raw data will be kept for 14 days (valid from 18.10.2018). All older data will be discarded. Please adjust your processes to gather the data accordingly. If your user has write permissions in your directory on download.webtrekk.com, you can integrate the deletion of the data into the process after retrieval.
Should you nevertheless need older raw data again, you can export them manually from the frontend. From 18.09.2018, the format of the manual format also corresponds to that of the automatic export, so that an import into your systems does not require any further effort.
The hourly export is limited to 7 days per export due to the amount of data, but you can export several times in a row. Daily exports are not limited by time.
More information on raw data definition can be found here.