This document provides instructions for using transaction FB50 in SAP to post cross-company code general ledger documents. Transaction FB50 allows a user to post entries that include data for multiple company codes. For example, an entry can be posted with company code 1000 in the header and include a line item for company code 5200. The system will then automatically generate offsetting line items to balance debits and credits across the company codes. The document outlines the steps to access and use transaction FB50, including entering header and line item information, simulating, and posting the journal entry.