Diary notes, attachments and the activity log

The three tabs that hold everything a reservation knows about itself but cannot charge for: what staff wrote down, what is filed against the booking, and who changed what. Includes voiding an invoice and reversing a transfer posting.

Where to find it
Property Management SystemReservationsAny bookingDiary Notes
Last checked
August 15, 2026

Most of the reservation page is about money and rooms. Three of its tabs are not. Diary Notes holds what staff wrote down, Attachments holds what is filed against the booking, and Activity Log holds who changed what. Nothing in any of the three affects the balance, which is exactly why they are the tabs people forget until an argument starts.

Three tabs, one job

Between them they answer the three questions that come up after the guest has left and the folio is closed: what did we know, what did we send, and who did this. Keep them in that order in your head and it is usually obvious which one to open.

TabWhat lives thereWho writes it
Diary Notes Free text about the guest or the stay. Preferences, promises, warnings. You. Nothing is written here automatically.
Attachments Invoices the system generated, plus any file you upload against the booking. Both. Invoices arrive on their own; files are yours.
Activity Log A dated line for every change made to the reservation. Only the system. There is no way to add or edit an entry.

The counts on the first two tab chips are live. Diary Notes counts active notes only, so archiving one makes the number drop, which is the point of archiving. Attachments counts invoices and uploads together. The activity log has no count, because a number that only ever goes up tells you nothing.

Diary notes

The Diary Notes tab. On the left a panel headed Add New Notes with an empty text box and a greyed-out Save Notes button. On the right a filter with Active Notes (2) and Archived Notes (1), above a table with columns ID, Created on, Updated by, Last updated on and Notes, holding two notes about a VIP guest and a room change.
Write on the left, read on the right. The two counts are the whole filing system.
  1. The compose panel. Always there, always empty on arrival.
  2. Active and archived. Two lists, one table. The counts are the tab labels.
  3. The notes themselves. Newest is not necessarily first, see below.
ColumnWhat it holds
ID The note's number in your property. It is sequential across the whole property, not per reservation, so the numbers on one booking will have gaps.
CREATED ON When it was first written, in your property's date and time format.
UPDATED BY Who touched it last, not who wrote it. Editing somebody else's note puts your name here and theirs disappears.
LAST UPDATED ON When that happened. On a note nobody has edited it matches CREATED ON.
NOTES The text. It wraps rather than truncating, so a long note makes a tall row.

Writing a note

The Add New Notes panel: a label, an empty text box with the placeholder Input your notes..., and a Save Notes button that is greyed out because nothing has been typed.
Save Notes stays dead until there is something to save.

Type and press Save Notes. There is no title, no category and no length limit; a note is one block of text with your name and the time stamped on it. The button is disabled until the box has something other than spaces in it.

The note lands in Active Notes and the box clears. If you were reading the archive when you saved, the tab switches back to active so you can see what you just wrote rather than wondering where it went.

Write for the person on the next shift

A note is read by somebody who was not there. "Guest unhappy" is useless three days later; "Guest unhappy about noise from the lift on the 14th, moved to 209, comped one breakfast" is a handover. The activity log will record that the room changed and the folio will record the comp, but only the note explains why either happened.

Archive, edit, delete

The three dots at the end of a row hold everything you can do to a note. What is in the menu depends on which list you are looking at.

The row menu on an active note, offering Archive, Edit and Delete, with Delete in red.
On an active note: put it away, change it, or destroy it.
ItemWhat it does
Archive Moves the note to Archived Notes. It stays on the reservation and stays readable; it just stops counting and stops being in the way. Reversible.
Edit Rewrites the text in place. The original wording is not kept anywhere.
Delete Removes it from the reservation for everyone. Not reversible, and the activity log records that a note was deleted but not what it said.
The Edit Note drawer: the title Edit Note, the description "Update the note text and save your changes.", a Note field holding the existing text, and Close and Save buttons.
Editing rewrites the note in place and stamps your name on it.

Save is disabled while the box is empty, so you cannot blank a note by editing it, deleting it is the only way to make it go away, and that asks first.

A confirmation dialog headed "Delete this note?" explaining that the note will be removed for everyone and suggesting Archive instead, with Cancel and a red Delete note button.
Delete asks first, and points at the reversible option.

If you are deleting because the note is stale rather than wrong, archive it instead. Notes are frequently the only record of a verbal promise, and a stale note costs nothing to keep.

The archive

The row menu on an archived note, offering only Restore and Delete.
On an archived note the same menu offers Restore instead of Archive and Edit.

An archived note cannot be edited. To change one, restore it, edit it, and archive it again. That is deliberate: the archive is meant to be a record of what was true at the time, not a drafts folder.

The Archived Notes tab showing one row: a note from Maria Front Desk reading "Awaiting flight number before arranging the airport pickup."
Archived notes are still on the reservation, just out of the way.

Attachments

The Attachments tab: an Upload File button top right, then a table with columns Name Document, Type and Date Created holding INV-2026-0148 and INV-2026-0131 tagged Invoice and two files tagged File, a signed registration card and a passport scan.
Invoices the system made and files you uploaded, in one list, with a tag saying which is which.
  1. Upload File. One button, no dialog. Covered below.
  2. Invoices. Generated by Prostay. Tagged Invoice and carrying a document number.
  3. Files. Anything you uploaded. Tagged File and carrying its filename.

The TYPE tag matters more than it looks, because the row menu is completely different for the two kinds. An invoice can be settled, voided and emailed; an uploaded file can only be opened. Invoices are always listed first, then uploads, each group oldest to newest.

Uploading a file

Upload File opens your computer's file picker and uploads whatever you choose straight away. There is no dialog, no description field and no category. The filename is the only label the file will ever have, so name it before you upload it, scan.pdf on a booking with three guests is a file nobody will open twice.

The file is filed against the booking's lead guest. There is no picker for that, which is worth knowing on a multi-guest reservation: a passport belonging to the second guest still files under the first. If you need documents attached to a specific person, the Guest tab has a per-guest ID upload that does exactly that.

There is no delete

Nothing on this tab removes an attachment. An uploaded file stays on the reservation permanently, and an invoice can be voided but not deleted. Check what you are uploading before you upload it, particularly with documents that carry passport or card data.

What you can do to an invoice

The row menu on the unpaid invoice INV-2026-0148: View, Mark as Paid, Void & Credit Note in red, and Send by Email.
An open invoice: settle it, kill it, or send it.
The row menu on the settled invoice INV-2026-0131: View, Mark as not paid, Void & Credit Note, and Send by Email.
The same menu on a settled invoice swaps one line: Mark as not paid.
ItemWhat it doesWhen it appears
View Opens the document in a new browser tab. Always, on both kinds of row.
Mark as Paid Records the invoice as settled. It does not post a payment to the folio: this is bookkeeping on the document, not on the money. On an open invoice.
Mark as not paid Puts it back to open. Use it when the payment turns out not to have cleared. On a settled invoice.
Void & Credit Note Cancels the invoice. See below. On any invoice.
Send by Email Emails the invoice to the lead guest's address. On any invoice.
The row menu on an uploaded file, offering only View.
An uploaded file only opens. Nothing here deletes it.

Mark as Paid is not a payment

Settling an invoice here changes the invoice's own state and nothing else. The folio balance does not move, and no payment line appears. If money actually arrived, post it on the Folio tab as well, an invoice marked paid against a folio that still shows a balance due is the single most common source of "the accounts do not tie out" at month end.

Voiding an invoice

The Void Invoice dialog, explaining that voiding cancels the invoice and puts its charges back on the open folio without removing them, with buttons Cancel, Void Only and Void & Send Credit Note.
Voiding asks whether the guest should be told, and the two right-hand buttons are the answer.

Voiding cancels the document, not the charges. The lines that were on the invoice go back to being open items on the folio, ready to be invoiced again, correctly this time, or to a different payer. Nothing is written off.

  • Void Only, cancel it quietly. Right when the invoice never left the building, or when you are about to reissue it within the minute.
  • Void & Send Credit Note, cancel it and send the guest a credit note against it. Right when the guest or their company already has the invoice in their accounts, because their bookkeeping needs a document that cancels the one they are holding.

If you are unsure, ask whether the invoice has left the property. Once it has, a credit note is not optional courtesy; it is what lets the other side close their books.

The activity log

The Activity Log tab: a filter reading All Activity, General, Transfers, then a table with Date & Time, User and Changes columns. The newest row is a Transfer Posting card; below it are payment, rate change, room assignment, status change, guest edit, note and reservation-created entries from System and named users.
Everything that has happened to this booking, newest first, with the name of whoever did it.
  1. The filter. Three views of the same list.
  2. Transfers get a card. Everything else is a line of text.
  3. Who did it. Name and email, or System for anything automatic.

The log is written by the system and cannot be added to, edited or cleared. Every status change, rate change, room assignment, payment, note and guest edit lands here with a timestamp and an author. It is the answer to "who authorised this rate", and it is the reason that question is usually settled in ten seconds rather than an afternoon.

FilterWhat it shows
All Activity Everything, newest first.
General Everything except transfer postings. The day-to-day history without the accounting.
Transfers Transfer postings only. Use it when you are chasing money between two bookings.

Entries recording a reversal are never shown as rows of their own. Instead the transfer they undid is marked Reversed and carries the reason underneath, so one event reads as one row rather than two rows contradicting each other.

Transfer postings

A Transfer Posting entry: the title, an arrow badge reading IN, the line "1 item from Marco Rossi (#20260111)", badges Debit: USD 90.00 and Credit: USD 0.00, the reason "Breakfast billed to the lead guest", and a Reverse button.
Transfers get their own card because a folio line moved between two bookings and both need to say so.
  1. Which way it went. IN means this booking received the charge; OUT means it sent it.
  2. What moved, and what it was worth. Debit is charges, credit is payments.
  3. Reverse. Only on a transfer that has not already been reversed.

A transfer posting moves folio lines from one reservation to another, billing the group leader for the whole party's breakfast, say, or pushing a charge onto the company account. The same event appears on both reservations, as OUT on the one that gave the charge up and IN on the one that took it, sharing a reason and a reference.

Reversing a transfer

The Reverse Transfer Posting dialog: the explanation "This rolls back the transfer posting. Please provide a reason for the reversal.", a Reversal reason box, and Cancel and Reverse buttons with Reverse greyed out until a reason is typed.
A reversal needs a reason. Without one the Reverse button will not light up.

Reversing sends the transferred lines back where they came from. Both folios move: the charge leaves the reservation that received it and reappears on the one that sent it, and both balances change to match. The Reversed badge and your reason are written against the original transfer on both bookings.

The reason is compulsory. It is the only explanation anybody will have for why a charge was moved twice, and it is read far more often than the reason on the original transfer.

A reversal is not a second transfer

Reverse when the transfer was a mistake. If the charge genuinely belongs somewhere else now, transfer it again from the folio instead, that leaves a trail showing where it went, whereas a reversal only shows that it came back.

The E-mails tab

The fourth tab in this group, E-mails, is a placeholder for a per-reservation mail history. Nothing sends it real data, so treat anything it shows as sample content rather than as a record of what went to the guest: if a booking that has never had an email lists a row, that row is furniture. Mail sent to the guest is recorded in the activity log in the meantime, Confirmation letter emailed to… in the screenshot above, and mail is sent from Actions in the reservation header, not from here.

Things that catch people out

  • The Diary Notes count ignores the archive. A tab reading Diary Notes 2 on a booking with six notes means four of them are archived, not that four are missing.
  • Updated by is not the author. The column shows whoever saved it last. Fix somebody's typo and the note is attributed to you.
  • Marking an invoice paid does not touch the folio. They are two separate records and both need settling.
  • Voiding an invoice does not remove the charges. They return to the open folio, so the balance is unchanged and the guest still owes the money.
  • Uploads always file under the lead guest. Use the Guest tab if the document belongs to somebody else on the booking.
  • Nothing on Attachments deletes. There is no undo for an upload.
  • Reversals hide themselves. Filtering to Transfers shows the original entry with a Reversed badge, never a separate reversal row.

Common questions

  • Can a guest see diary notes?

    No. Diary notes are internal. They never appear on a confirmation, an invoice or the booking engine, and there is no setting that publishes them. Write them for staff, plainly.

  • What is the difference between archiving and deleting a note?

    Archiving moves the note into a second list on the same tab: it stops counting towards the tab number, stays readable, and can be restored at any time. Deleting removes it for everyone, and the text is not recoverable from anywhere, not even from the activity log, which records that a note was deleted but not what it said.

  • Why can I not edit an archived note?

    Archived notes are deliberately read-only, so the archive stays a record of what was written at the time rather than a drafts folder. Restore the note, edit it, then archive it again.

  • Can I delete a file I uploaded by mistake?

    Not from this tab. There is no delete action on an attachment, and an invoice can be voided but not removed. Contact support if a file genuinely has to come off the booking, and check what you are uploading beforehand, particularly anything carrying passport or card data.

  • I marked an invoice as paid but the reservation still shows a balance. Why?

    Because those are two separate records. Mark as Paid changes the state of the invoice document and nothing else; the folio balance only moves when a payment is posted on the Folio tab. If the money really arrived, post it there as well.

  • What is the difference between Void Only and Void & Send Credit Note?

    Both cancel the invoice and return its charges to the open folio, so neither writes anything off. The second one also sends the guest a credit note, which is what their bookkeeping needs if they already have the original invoice in their accounts. If the invoice has left the property, choose the credit note.

  • Can I add a line to the activity log?

    No. The log is written by the system only, and entries cannot be added, edited or cleared by anyone. If you need to record something by hand, that is what diary notes are for.

  • Does reversing a transfer move the money back?

    Yes. The transferred lines leave the folio that received them and reappear on the one that sent them, and both balances change to match. The original transfer is then marked Reversed on both reservations, with your reason underneath it.

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