What is the relationship between tcode 'SOLAR01' with 'SOLUTION_MANAGER'?

Hi all,

Can you tell me what are relationships between tcode 'SOLAR01' with 'SOLUTION_MANAGER'? My current system can't assign messages to the issue at 'SOLAR01'. But, messages are able assigned to issues at 'SOLUTION_MANAGERS'. How can it happen? What cause this phenomena happen?

Best Regards,

Chee Boon