> ## Documentation Index
> Fetch the complete documentation index at: https://devzone.nayax.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Global Payment Flows

TweezerComm follows structured payment flows to ensure secure and efficient transaction processing. These flows define how different transaction types, such as regular payments, pre-authorizations, and deferred payments, are handled within the system. Understanding these flows enables client applications to integrate appropriately with the Nayax Gateway and optimize payment processing capabilities.

The pages below provide a more detailed description of each one:

<Columns cols={2}>
  <Card icon="link" title="Pre-Selection" href="/docs/integrate-pos-device/tweezercomm/global-payment-flows/tweezercomm-engine-preselection-flow" />

  <Card icon="link" title="Pre-Authorization" href="/docs/integrate-pos-device/tweezercomm/global-payment-flows/tweezercomm-engine-preauth-flow" />
</Columns>