HOW TO RESOLVE SIC CODE ERROR
SIC Code not updating for employees on Sage 300 People.
Error of Invalid SIC Code when doing a Mid Year or Tax Year End Submission.
Resolution
If the Company Rule has been updated with a valid SIC Code
And the SIC Code has been updated to the employees
Option 1:
If the issue is still not resolved.
Option 2:
The End...
Information source: Sage Knowledgebase