- 🇳🇱Netherlands megachriz
Yes, this is possible. You just need to have a field on your content type that can be used as a unique identifier. That can be any text or number field. Using the node ID is also possible. Feeds Item GUID may not be possible, because I'm not sure if Devel Generate sets a value for that field, I would assume it does not.
On the mapping page you need to map to the field that can be used as a unique identifier and for that target, be sure to click the checkbox in the column "Unique":
Automatically closed - issue fixed for 2 weeks with no activity.