Files:
Fields with sign "/" they are empty - so they all fields that don't have any items (e.g. empty) have to be marked with "/"
Fields CNT: this how Header linked with Item.
Field LIFNR/KUNNR/SAKNR - this fields contains different accounts in one field either Vendors, or Customers , or G/L Account Number.
Field HKONT - reconciliation account for LIFNR/KUNNR (Vendors, Customers).
HEADER FILE:
ITEM FILE: