Avoiding Double Charges in Offline Mode

Avoiding Double Charges in Offline Mode

TITLE

Guidelines for Avoiding Double Charges (Offline Mode)

DESCRIPTION

Payment is taken from an Offline system, and is then taken again on the same Check from an Online system.

Because an Offline system will not communicate with an Online system, the POS allowed a double charge on the same Check.

This document establishes guidelines for avoiding double charges.

 

Offline Mode Indications in Point of Sale:

 

Error Message at Bottom of the Screen:

 

 

Red Offline Indicators at Top Right of Screen:

 

 

Offline Mode Pop-Up on Batch and Tip Adjustment Screen:

 

 

Scenario:

1.    A payment was taken on a Check in Node 1 while the node was Offline, then the Check was closed.

2.    Before Node 1 came back Online, the same check was opened in Node 2 where payment was taken and the check was closed again.

3.    After some time, Node 2 came back online, and payment that was collected in offline mode is now sent to the processor.

4.    This scenario caused a duplicate payment.

 

 

Guideline:

If payment is taken on a Check from a Terminal that is Offline:

 


DO NOT
take payment on that same Check again - from the Offline Terminal or any other Terminal.


Once the Offline Terminal comes back Online, the payment will be updated to all other Terminals.

 

This will prevent the occurrence of duplicate Payments on the same Check.

 

1.   Do not Process Batch or Close the Day yet. A refund must be initiated for the duplicate transaction.

2.   Issue a Refund for the duplicate transaction from the Closed Checks screen. (Please see Issuing a Refund
).

3.   Contact support at support@lingaros.com
with the check details and authorization code of the transaction refunded. Linga will correct the reporting.

If a Duplicate Payment is accidentally taken and the batch has already been processed:

1.   Contact your processor with the check details and the authorization code of the duplicate transaction and request a refund be initiated.

2.   Contact support at support@lingaros.com
with the check details and authorization code of the transaction refunded. Linga will correct the reporting.



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