This section describes errors that you may see on a website import. For more information, see Invalid category reference key Information for website <NULL>.
Invalid category reference key Information for website <NULL>
In the UI, before you can select a site category for an item, a site must be chosen first.
Because the Site is a required field, you must include the site name in the CSV file and map it during the import. The site name is the one given to the site at its creation in NetSuite.
If you do not want to include the site name in each CSV file, you can assign a default value for the Site field in the mapping page by clicking the edit icon and choosing a site. If you assign a default value, the error is eliminated.