error 513, no message was created in Support Desk System

After implementing QAS in sp's 15, when the user wants to create a message from QAS solution manager, get the following error "Because of error 513, no message was created in Support Desk System"

has been revised rfc connections and have no problem because when the user is done with NetWeaver - works perfect basis.

Nor is it because of permissions users have the same roles that were assigned in the other systems DEV and PRD, and when they have no problems sending messages.

I have reviewed the table BCOS_CUST "and is fine. As in other systems.

I am grateful if someone can help me.

Regards