Notice of MMS Office Early Closure July 22, 2016

MMS staff will be participating in a staff function on July 22, 2016
We will be closing the office early at 12:00pm ADT. 

For Client Support Inquiries
If your matter is not urgent, you can email us at and your email will automatically generate a trouble ticket that will be updated during regular business hrs.

Please follow the after-hours procedures in case of emergency-store down situations
by calling MMS Client Support 1-800-668-7757 and press 9

Master Merchant Systems


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