Hi, adding “Shop Manager” to setting Woocommerce > Settings > PPOM Settings > PPOM permissions does not work because when I log in as a Shop Manager, then menu Woocommerce > PPOM Fields is not available.
I have got latest versions: 20.3 & 18.11.
I have found that I must disable and re-enable the plugin to make it work. But it would be fine if you update roles’ capabilities just after saving setting PPOM Permissions.