Message Number list used by SAP ABAP Class CX_FSL_AB_CRMB_ERROR (Error While Transferring to CRM Billing)
SAP ABAP Class CX_FSL_AB_CRMB_ERROR (Error While Transferring to CRM Billing) is using
# Object Type Object Name Object Description Note
     
1 Message Number  FSL_APPL - 023 You have not configured the RFC destination for CRM system; see long text
2 Message Number  FSL_APPL - 027 System with RFC connection &1 cannot be reached