No. Cards generated for a Data Project can only be used for the Project they were created from.
Also, if you upload a new version of your CSV data file, new codes will be generated and you must ensure that you are using the correct codes. Any previously generated codes for a Data Project are overwritten by the updated version and must not be used.
Ensure that you are using the correct version of your cards by checking the timestamp as shown.
Yes. Cards generated for a Event Project can be used for any other Event Project since they are not connected to a Subject until the card is photographed.