Magnesafe Magstripe Reader Setup
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To use Cayan - Merchant Warehouse credit card processing integrated into Jewelry Shopkeeper, first verify
that you have your credentials from your Cayan Rep.
Site ID: Approximately 8 digits and letters
Key: Five groups of four letters and numbers
Name/Merchant ID: Your store name
Note that there is a second set of credentials that enables access to reporting and to the Merchant Warehouse
Payment Gateway. For that you need:
Username Usually contains a part of your store name and digits
ID Number: Usually a four digit number
Note that these last three enable you to verify payments online at
You can also process or void or report payments there *independently* of Jewelry Shopkeeper
The below instructions assume you have a MagTek Magnesafe encrypted credit card reader. This must come from
Merchant Warehouse because the encryption must be set by them.
The reader should have a padlock icon on it and if you swipe a credit card while in a word processor
or email program, you should see mostly gobbledygook.
If you have a different reader, please let us know
In VJS, choose Preferences from the Maintenance Menu
Then select the Credit Card Defaults page under Payment Options.
Type MWSECURE4 in the Credit Card Authorization box and then click More Account Settings
select the Merchant Warehouse line in the Company box
Enter the credentials
Chose Save and Exit from the Web Credentials screen
Then choose Save from the top of the Preferences screen
Remember, before you try to process a payment via Jewelry Shopkeeper, process a test payment via the Merchant Warehouse Payment Gateway.
E.g. use your own card for $0.75 and directly after you can Void that, also from the Payment Gateway web page https://ps1.merchantware.net
or from https://portal.merchantware.net