Posting records let third-party systems charge the guest folio — calls, minibar, pay-TV, Internet. Simple cases use PS; when you need confirmation use the request/answer pair.
| Field | Meaning |
|---|---|
RN | Room number |
TA | Total amount in the smallest currency unit |
P# | Posting sequence number to match request and answer |
DA / TI | Date / time |
AS | Answer status in PA — OK on success, other values give the reason |
Request PR|RN1203|P#000578|TA3500|DA261020|TI203015|
Answer PA|RN1203|P#000578|ASOK|DA261020|TI203016|
- Amounts carry no decimal point.
- Keep rejected postings and alert staff — never drop them.
- On timeout, verify before resending; use
P#to avoid double posting.