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CastlesPOS

The guidance below relates to the CastlesPOS application.

If you are using CastlesPay to take transactions, please refer to the Saturn Guides.

Table of Contents

1. Menu Navigation

2. Processing a Sale

3. Processing Refunds

4. Reports & Receipt Options

5. Configuration Options

6. Terminal Settings

7. Transaction Settings

8. Printer Settings

9. Password Settings

10. Volume Settings

11. Building a Basket

12. Tipping & Finalising a Transaction

13. Start a Split Payment

14. Collecting a Split Payment

15. Authorise a Card Refund

16. Batch & Settlement Options

17. Review Split Reports & Transactions

Menu Navigation

  1. Tap the three horizontal lines (hamburger icon) at the top left of the Sale screen to open the main menu.

  2. Select the menu option you require.

  3. Use the Back button, or the top left back arrow where one is provided, to return to the previous screen.

Processing a Sale

  1. Select Sale from the main menu and check that the header reads SALE.

  2. Use the numeric keypad to enter an amount. Check Amount Entered before proceeding; the display is the reference for decimal placement.

  3. When using the basket, tap ADD to add the entered amount. Review Basket and Total Amount, then repeat for further amounts.

  4. Choose Pay Cash or Pay Card as appropriate. Follow the terminal prompts and check the final transaction result before treating the sale as complete.



Editing an entry: The keypad includes a < key for correcting input, plus Cancel Last and Cancel All. Check the amount and basket after any correction.


Split payments: Split Bill is available on the Sale screen. Review the total first, then select it and follow the prompts for the required payments. Confirm the remaining balance as you proceed.



For illustrated amount entry and payment prompts, see Building a Basket and Tipping & Finalising a Transaction.

For split payment setup see Starting a Split Payment and Collecting a Split Payment.

For refund prompts Authorise a Card Refund.

For batch options see Batch & Settlement Options and Review Split Reports & Transactions.

Processing Refunds

Start from a recorded transaction
  1. Open Transaction List from the main menu.

  2. Select the required transaction, checking its date, time, base amount, tip amount and type.

  3. Tap Refund Selected and follow the prompts. Previously refunded transactions are shown in bold. Check the final result before confirming the refund to the customer.



Start from the Refund screen
  1. Select Refund from the main menu and confirm that the header reads REFUND.

  2. Enter and review the refund amount, using ADD if building a basket.

  3. Select Pay Cash or Pay Card as appropriate and follow the terminal prompts. Apply your organisation’s refund authorisation procedure.



The Transaction List also shows sale, tip and refund totals for cash and card, with Print and Reset Totals controls. Only use Reset Totals when your reconciliation procedure requires it; check the consequences with your supervisor first.

Reports & Receipt Options

  1. Select Reports from the main menu.

  2. Choose the required report tile. The visible choices are REPRINT, X TOTAL, Z TOTAL, SUMMARY, AUDIT and SERVER.

  3. Follow any prompts and check the report or printout. Use the arrows in at the bottom of the screen to navigate between pages to view additional options.



For a receipt copy, locate REPRINT in Reports. Receipts is also a separate main menu entry. The available selection and printing steps depend on the next screen.


For end of day work, follow your organisation’s reconciliation procedure. Other Transactions & EOD (End of Day) is a separate menu option. Confirm the intended effect before selecting Z TOTAL or any action that may close or reset totals.

Configuration Options

  1. Open the main menu and select Config.

  2. Review the checkboxes and options on the Configuration screen.

  3. Make the required change and use Back to return. Check the resulting behaviour before starting the next transaction.



  • Basket Mode controls the basket option.

  • Split Billing is the app’s split payment option.

  • Keyboard Beep and Beep Volume provide keypad sound settings, with Low, Med and High choices.



  • The arrow beside Tip Entry Settings opens further tip options.

  • The arrow beside Refund Password opens refund password configuration. Follow your supervisor’s requirements when changing either setting.

Terminal Settings

The Sale screen has a gear icon at the top right for settings. The SETTINGS pages contain terminal and transaction controls. Use the bottom right page arrow to move to the next settings page and the bottom left arrow to return. Use the top left back arrow to leave the screen.


The first page usually will contain TRANSACTION, PRINTER, PASSWORD, DEBUG, RESET CFG and ACQ DELETE. The next page usually will contain VOLUME, POWER and NAVIGATION.


Routine changes are described on the following pages. Leave DEBUG, RESET CFG, ACQ DELETE, POWER and NAVIGATION to an authorised administrator or support procedure; confirm their effect before use.


After you have made any desired changes on the Configuration page or any of the Settings pages, check the result of those changes by testing the terminal's relevant behaviours. If a result is unclear, check the Transaction List and follow your support procedure before repeating a payment or refund.

Transaction Settings

1. Open SETTINGS and select TRANSACTION.

2. Review the current values next to each option. Tap the relevant switch only when a change is required.

3. Use the back arrow to return and check the next transaction behaves as intended.



Amount confirmation is shown ON. Print merchant receipt and Print customer receipt are both ON. CASHIER or SERVER is set to SERVER.


Enable Donation and Enable Loyalty are OFF. Change Loyalty Type shows ZealPay. Enable Split is ON. These are the example values pictured; use the values required for your terminal.


Split options also appear in Config as Split Billing. Check both locations if the expected split payment control is unavailable. Receipt printing options here are separate from the printer’s paper feed and heat controls.

Printer Settings

Printer controls

To access these controls, open SETTINGS and select PRINTER.


The Print screen has a value in CM with a ROLL button, and a HeatLevel selector with SET. Use the CM and ROLL controls for paper feed and HeatLevel with SET for print heat adjustment, following your terminal support procedure. The example shows 0 CM and HeatLevel 3.



Password Settings

Change a password
  1. Open SETTINGS and select PASSWORD. Choose the Merchant or Referral section.

  2. Enter the existing password in the matching Old Password field, then enter the replacement in New Password.

  3. Use SHOW if you need to check the entry and it is private to do so. Tap SAVE in the same section and follow any response on the terminal.



Merchant and Referral passwords are separate from the Refund Password entry in Config. Use the correct setting for the password you intend to change.

Volume Settings

  1. Open SETTINGS and use the page arrow to reach VOLUME.

  2. Select VOLUME to open Volume Settings.

  3. Drag the relevant slider for Media, Call, Alarm or Notification volume. Move it right for a higher level or left for a lower level, then use the back arrow to return.



Keypad sound is configured separately under Config using Keyboard Beep and Beep Volume.

Building a Basket

  1. Enter the amount using the keypad. Digits represent pence: the example pictured left appears as £0.01. Always check Amount Entered.

  2. Tap ADD to move the entered amount into the basket. The example shows one basket line for 0.01 and Total Amount of £0.01.

  3. Check that Amount Entered has returned to £0.00. Enter and add further amounts as required.

  4. Review the basket and total, then select Pay Card or Pay Cash.


Before ADD, the example has £0.01 in Amount Entered but £0.00 in Total Amount. After ADD, the total becomes £0.01. Check Total Amount before starting payment.

Tipping & Finalising a Transaction

  1. If Tip Entry appears, review Base Amount, Tip Amount and Total Amount. Choose NO TIP or one of the displayed percentages. Custom Amount provides a separate amount entry option.

  2. Check the total and tap Continue. Cancel is available if you need to stop this step.

  3. For a card payment, wait through Processing. On the SALE card screen, check the displayed amount, then ask the customer to tap, insert or swipe as prompted.

  4. Follow any further prompts and check the final transaction result. A card presentation screen or processing message alone does not confirm approval.



A MANUAL button is also present; follow your organisation’s procedure for manual entry. Use CANCEL if the transaction needs to be stopped, then check its status before retrying.


Digital receipt: When the QR receipt screen appears, the customer can scan the code to view the receipt. Use the back arrow to leave that screen. Check the transaction result separately

Start a Split Payment

  1. Build and check the sale total, then tap Split Bill.

  2. On Split Payment, check the amount and enter the number of payers. The example pictured left uses 2 payers for £0.71. Tap Enter.

  3. On Select Split Tip Type, choose Individual Tips or Group Tip, then tap Continue. Individual Tips allows separate tips; Group Tip offers a group tip at the end.

  4. Choosing a tip type does not commit the customer to leaving a tip. Select the split mode on the next screen.

Collecting a Split Payment

  1. Select Split Per Person, Split Per Couple or Custom Split according to the requested arrangement.

  2. Review Payment Amount, the payment number and Amount Remaining before collecting each payment.

  3. Select Card or Cash, then follow the payment prompts and check the result.

  4. Continue with the remaining payments as prompted. Check the final balance and transaction results before considering the bill paid.



The example shows Payment 1 of 2 with a Payment Amount of £0.36 and Amount Remaining of £0.71. That is the state before the first payment; use the amounts displayed at each later stage rather than assuming every instalment is identical.

Authorise a Card Refund

  1. Open Refund and enter the amount. Tap ADD when building a basket, then review Total Amount. The example refund pictured left is £2.22.

  2. Select Pay Card. When Refund Password appears, enter the authorised refund password using the keypad and tap Enter. Back returns to the previous screen.

  3. At the REFUND card screen, check the amount again. Ask the customer to tap, insert or swipe their payment card as prompted.

  4. Follow the remaining prompts and check the final refund result before confirming completion to the customer.



For a recorded transaction, use Transaction List, select the correct row and tap Refund Selected. The list identifies each transaction by date, time, base amount, tip and type. Apply any password or confirmation prompts presented.

Batch & Settlement Options

  1. Select Other Transactions & EOD from the main menu to reach OTHERS.

  2. Select BATCH to open the batch options.

  3. Choose the required function under your reconciliation procedure. The visible options are FIND, REVIEW, STATUS, TOTALS and SETTLE.



OTHERS also provides PRE-AUTH, COMPLETION, REPORT and MORE TXN. These are separate transaction or reporting functions; use the appropriate procedure for the task.


Settlement: Confirm that reconciliation is complete before choosing SETTLE. Follow the terminal prompts and check the final settlement result. Keep any required report. The menu itself does not show that settlement has occurred.

Review Split Reports & Transactions

  1. Open Reports to reach the report tiles.

  2. Tap the bottom right page arrow to reach the next page.

  3. Select SPLIT REPORT for split payment reporting. Follow any further prompts and check the resulting report. Use the bottom left arrow to return to the first report page.


Transaction review: Open Transaction List to review recorded transactions and cash or card totals. The example contains a Cash transaction with a base amount of 0.01 and tip of 0.00. Its Cash Sale Total is 0.01. Check the Type column when reconciling a payment.

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