SAP CRM Billing doc error

Hi

1. Billing document is created in SAP CRM, But it is with zero value
2. It has errors like Maximum number of items in FI reached ( F5 / 727 ) & Error in document: BEBD 0901077214CRMB PC4CLNT400 ( RW / 609 )

The document is not getting transferred to R/3 ,

Can any body help on this issue