Hi @JM_10218548
You can use Windchill Rest Services to Create / Check In / Check Out documents in the Windchill system from Thingworx

To access WRS documentation - https://<<HOST>>:<<PORTNUMBER>>/Windchill/netmarkets/html/wrs/doc.html
If Thingworx Navigate is configured in your Thingworx Instance, you can directly consume Windchill API using Navigate ODataConnector (which will take care of authentication ) or you can use ContentLoader Function in Thingworx to consume Windchill API.
To delete documents from your Thingworx Repository, you can use the 'DeleteFile' or 'DeleteFolder' (to delete the entire folder) service from your Repository Thing.
/VR