- Shipping company or ship's agent (sender)
- Barge operator (sender)
- Container terminal (receiver)
- Antwerp Port Authority (receiver in BTS)
- Antwerp Port Authority (sender in BTS)
- Portal sites (receiver)
- Information about the vessel
- A list of ports to be called at.
The general UN version of the IFTSAI message can also be used in the other direction as a request for a vessel schedule to be sent. For this purpose it also offers possibilities for sending information on the cargo (GID group), but this is not used by SDMG and neither is it used in Antwerp.