FBL5N does not have the Sales Doc Number.
You can use
- Assignment/Allocation Number
- Reference Number
in Copying Control(VTFF, VTFA & VTFL) to transfer following doc no to Accounting doc
- Purchase order number
- Sales order number
- Delivery number
- External delivery number
- Actual billing document number
- External delivery no. if available, otherwise delivery no.
Thanks,
JP