Hello @lidiad , I think this is a bug that has been fixed in newer versions. You seem to be missing a parameter under the 'Constraints' window for Feature Types (this screenshot is from FME 2022.0):
I had a look at older versions, and was also able to see the missing parameter in FME 2021.2 b21766, see image:
This should be an easy fix, just need to upgrade. You can find new versions on our Downloads Page (should be okay with FME 2021.2 b21812) .
As for the 'WFS Output Format', the deletion of the output is expected I think. If we take a look at the documentation, it tells us: 'If a non-GML fomat is selected, an additional Non_GML_GetFeature will be returned by the WFS reader' and carry additional attributes through the translation. One of these attributes is 'wfs_temp_datafile' , and the doc tells us this file will be deleted at the end of the translation. So this is likely why you're seeing it deleted!
I wonder if using a FeatureWriter will be more useful here? Best, Kailin.