Included in MPOS and CPOS are two methods for extended logon functionality: logging in by scanning a barcode or by swiping a card with a magnetic stripe reader (MSR).
Dynamics AX For Retail Enterprise POS (EPOS) has functionality to email receipts but the implementation of the feature has a few tradeoffs: Email does not get sent immediately at the conclusion of the transaction.
Credit to Brian Storie (Microsoft) for authoring this article AX for Retail 2012 R3 introduced a new feature on the Receipt Format Designer that allows you to select a specific image for your Receipt Logo.
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