I'm not familiar with the specific meaning or context of "soe-998". This could potentially be:

1. A model number or part number for a product

2. An internal code or reference number used by a company

3. A designation in a particular system or database

4. A typo or misspelling of something else

Without more context about where you encountered this term or what field it might relate to, I can't provide much more information. If you have any additional details about the context or source of this code, I'd be happy to try to help further based on that extra information.