Is it possible to trigger
php bin/magento setup:upgrade from the backend? I need to give the company "Amasty" access to our project, so that they can debug a bug in their module, but I am not autorised to give them SSH access.
Not by default in Magento, although you can create your module module that reimplements the logic from the CLI command on a controller action. Or even just call the CLI command via reflection and with dummy interfaces.
The CLI command can be found at
If you do run it by a controller, dependent on your server config, you may need to use message queues to avoid request timeouts. Also dont forget to implement ACL rules.