The message ends with a footer composed of SI (Supplementary Information) and/or GI (General Information).
After the data lines (or last additional schedules information line, if applicable), first add SI then in free text format provide any supplementary information, which is relevant to the whole message.
Next GI followed by any other information.
NOTE: if sending request by email please always end your message with GI so that any non standard text is not read by systems.
SI IF NOT AVAILABLE PLS OFFER WITHIN +/- 30 MIN
GI BEST REGARDS .......