The test domain provided during setup is not intended for permanent operation. Marketplaces reject it.

How to recognise the problem

• For example, the marketplace reports cURL error 60: SSL certificate problem.
• The system's test domain is still stored in the settings.

How to fix the problem

1. Set up your own domain, either through an external provider or through PlentyONE.
2. Then enter your own domain in the marketplace settings.