# POS Help

- [POS Pairing](https://commanderhelp.verifone.com/pos-help/pos-help/pos-pairing.md): This guide provides the pairing message displayed on the register, outlines the requirements for pairing, and details the step-by-step process for successfully pairing your register.
- [Requirements to Pair your Register](https://commanderhelp.verifone.com/pos-help/pos-help/pos-pairing/requirements-to-pair-your-register.md): This page gives or shows you the Prerequisites for pairing a POS register
- [Pairing Message Displayed on Register](https://commanderhelp.verifone.com/pos-help/pos-help/pos-pairing/pairing-message-displayed-on-register.md): This page explains the Pairing-related Security Alerts shown on the register and which action to take.
- [How to Pair a Register](https://commanderhelp.verifone.com/pos-help/pos-help/pos-pairing/how-to-pair-a-register.md): This page shows the steps to Pair your Register when you receive a Pair POS message on your register.
- [Clearing Stuck Fuel Sales](https://commanderhelp.verifone.com/pos-help/pos-help/clearing-stuck-fuel-sales.md)
- [Unable to Clear Stuck Fuel Sales.](https://commanderhelp.verifone.com/pos-help/pos-help/clearing-stuck-fuel-sales/unable-to-clear-stuck-fuel-sales..md): If you encounter a Fuel sale on a pump that you cannot clear from the register, or if you are unable to Prepay due to an Unclaimed previous sale, follow these simple steps to resolve the issue.
- [Reserved Pump with Dollar amount in Green](https://commanderhelp.verifone.com/pos-help/pos-help/clearing-stuck-fuel-sales/reserved-pump-with-dollar-amount-in-green.md): Steps to clear a pump stuck in RESERVED with a green dollar amount
- [Stuck Prepay on Pump with Dollar amount in Green](https://commanderhelp.verifone.com/pos-help/pos-help/clearing-stuck-fuel-sales/stuck-prepay-on-pump-with-dollar-amount-in-green.md): How to clear a pump stuck in Prepay with a green dollar amount on Topaz and Ruby2/C18 registers (Stop Fuel and tender out or cash out the fuel sale).
- [Pump Underrun or Overrun with Dollar amount in Red](https://commanderhelp.verifone.com/pos-help/pos-help/clearing-stuck-fuel-sales/pump-underrun-or-overrun-with-dollar-amount-in-red.md): Fix a fuel prepay underrun/overrun showing a red dollar amount as a DUE sale by re-running Prepaid MOP (credit/debit) so the network completes payment.
- [Error: Preset Not Allowed](https://commanderhelp.verifone.com/pos-help/pos-help/clearing-stuck-fuel-sales/error-preset-not-allowed.md): This page explains how to resolve the above error.
- [Register touchscreen not responding](https://commanderhelp.verifone.com/pos-help/pos-help/register-touchscreen-not-responding.md): Fix a POS touchscreen that is not responding on Ruby2, Topaz XL, or C18. Follow quick checks, safe cleaning steps, and next actions if it still fails.
- [POS date or time is wrong](https://commanderhelp.verifone.com/pos-help/pos-help/pos-date-or-time-is-wrong.md): Fix a POS or register showing the wrong date or time. Update it in Config Client and check for a network time override if it changes back.


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