Go to SFX Product page in the Appexchange.
https://appexchange.salesforce.com/listingDetail?listingId=a0N3A00000EODsjUAH
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Click “Get It Now
Follow options to “Login to AppExchange”
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Choose to “Install in production” or “Install in sandbox”
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Read and Check “I have read and agree to the terms and conditions”, click Confirm and Install
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Login to your salesforce org, select the users and click on <Install>
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Select the SSL encryption and grant access for eWAY Payment gateway, Xero and SFX connector.
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SFX package will now install in the selected Org
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