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Transaction Workflow for the PCI-Certified MPoC Solution {#ttp-comply-pci-mpoc-txn-workflow}
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This diagram shows the transaction workflow for the PCI-Certified MPoC Solution in the Tap to Pay on Android Solution.

#### Figure:

PCI-Certified MPoC Solution Workflow  
![PCI-certified MPoC solution transaction workflow showing the sequence of
events](/content/dam/documentation/cybs/en-us/topics/payments-processing/card-processing/tap-to-phone/images/ttp-android-mpoc-600x350.svg/jcr:content/renditions/original)  
The PCI-Certified MPoC Solution workflow typically includes this sequence of events:

1. The point-of-sale (POS) app sends a request to the Tap to Pay Ready app to initiate a secure switch to the other app. This activity is invisible to the customer, which ensures that the UI experience is seamless.
2. The PCI-Certified MPoC Solution uses the Tap to Pay Ready app to provide a transparent overlay to securely capture payment details.
3. The Tap to Pay Ready backend receives payment details from the Tap to Pay Ready app to complete transaction processing.  
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