It means that the stock code is not linked to one of your Publications in Prima.
This can be caused by a user creating a new stock code manually, and not doing so through the item in the Publication itself properly.
The best way to manage this scenario is:
- Change the Stock code reference by inserting DIS before the code, save this then Discontinue the product.
- Once this is done go to Publications > Catalogs
- Highlight the relevant catalog and double click to load the lines
- Search for the relevant code and double click to open Item Details
You can then click the Make Product button to link the stock record correctly to the catalog item.