Yes, it is strongly recommended to test the catalogue before productive activation.

Why you should use test mode

Once you activate an offer or product catalogue and no longer operate it in test mode, the catalogue data will be transferred productively to Amazon. This can potentially lead to existing data on Amazon being overwritten.

Activating test mode

You activate test mode directly in the catalogue settings. However, please note that test mode only performs a technical check of the export and does not provide a complete preview of the impact on Amazon.