Items with "/" in the SKU may fail to import on orders due to a default web server configuration.

Special steps may be necessary to enable URL encoding for this character:

Enable encoded slashes in URL on your web host

The option to AllowEncodedSlashes may be necessary in the global configuration, or the virtual host configuration depending on your server setup.

Commerec5 version 2.6.2 or higher must also be used which enables slash encoding.