Vantage - Ecommerce website date into Epicor

Hi All,
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Have any of you had experience with ecommerce websites and integrating them to Epicor?
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Ie to disaply all of a customer's orders/quotes/invoices from epicor on their online area of the website and vice versa (if a customer orders online, pulling that order through to epicor for processing then back out to the ecommerce software with the correct invoice details.
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What ecommerce software have you used?
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Thanks,
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CHRIS

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