A customer completes a payment
Before someone manually checks PayPal and updates the order status.
After the confirmed payment moves the order forward on its own and notifies the customer.
Payments & POSUSPayPal integration & automation
Payments accepted worldwide, tied straight into the order that's waiting on them
PayPal is a US payment system that lets a business accept money from buyers in most countries of the world. We connect it to your store or CRM so a completed payment can move the order forward on its own, and we prove the whole flow safely in PayPal's practice environment before it ever touches a real payment.
What we connect
- A confirmed payment can move an order forward on its own — status changes, a notification goes out — instead of someone checking PayPal by hand.
- Connecting starts by exchanging a private set of business credentials for a short-lived access pass, which is what actually authorizes each following request.
- That access pass comes with an exact expiry time built in, so we know precisely when the connection needs to quietly renew it, without the flow ever stalling for the customer.
- Every new connection is first built and proven in a practice environment with fake money and two separate test accounts — one for buying, one for selling — so nothing touches real payments until it's ready.
- Going fully live, or testing purchases and payouts for buyers outside the US, needs a full business account rather than the basic setup a developer starts with.
- The moment something changes on a payment, PayPal can notify your store or CRM right away, instead of it having to keep checking back.
Automation scenarios
A new payment connection is being built
Before testing against real money and real customer accounts is a real risk.
After the whole flow is built and proven first in a practice environment with two safe test accounts.
The business wants to accept buyers from outside the US
Before the basic developer setup isn't enough to test or go live for that.
After a full business account unlocks testing and going live outside the US.
The access pass is about to expire mid-checkout
Before a stalled connection risks failing right when a customer is paying.
After the exact expiry time is known in advance, so the pass renews quietly before it runs out.
How it works technically
For those who want to check: each point links to the official documentation page it comes from.
PayPal's connections are built REST-style, authorize each request with an OAuth 2.0 access pass, and reply with structured JSON data and HTTP status codes.
Source: developer.paypal.com ↗ checked 2026-09-25To connect, an integration exchanges a client ID and a client secret for an access pass, and that pass is what authorizes every following request to PayPal.
Source: developer.paypal.com ↗ checked 2026-09-25The reply that hands over the access pass also states exactly how many seconds that pass stays valid for.
Source: developer.paypal.com ↗ checked 2026-09-25Testing purchases and payouts outside the US, or going fully live with an integration, both require a PayPal business account — a basic developer account alone isn't enough.
Source: developer.paypal.com ↗ checked 2026-09-25By default, every PayPal developer account comes with two practice accounts already set up — a personal one for buying and a business one for selling — so test money can move between them.
Source: developer.paypal.com ↗ checked 2026-09-25PayPal reports payment changes to an external system as webhook events: a capture completed, a capture refunded by the merchant, a capture reversed by PayPal, and an invoice paid or partially paid.
Source: developer.paypal.com ↗ checked 2026-09-29A completed payment can be refunded through the API by its capture ID, so a refund goes back against the original payment.
Source: developer.paypal.com ↗ checked 2026-09-29An invoice can be created as a draft through the API and then sent to the customer, or scheduled to be sent, so a payment request goes out without the checkout.
Source: developer.paypal.com ↗ checked 2026-09-29
Limits
Testing payouts outside the US, or going fully live, both require a full PayPal business account — the basic developer setup only covers building and testing inside the US.
Screenshots
How to start
Three steps from a first message to work on your project.
- 01
Leave a request
Describe the task in the form — in text or by voice. Budget and timing are optional.
- 02
We review and estimate
A developer studies the brief, asks about anything unclear and sends an estimate.
- 03
We start
Once scope and price are agreed, the work begins.
or write to info@coreviaflow.space
Questions
Can we test the integration before it touches real money?
Yes — every developer account comes with two practice accounts, one for buying and one for selling, so the whole flow is proven with fake money first.
Do we need anything special to accept buyers outside the US?
Yes — testing or going live outside the US needs a full PayPal business account, not just the basic developer setup.
How does PayPal tell our system that a payment went through?
PayPal can notify your store or CRM the moment something changes on a payment, so the order updates without anyone checking manually.
What happens when the connection's access pass runs out?
Its exact expiry time is known in advance, so it renews quietly before checkout, without interrupting the customer.
Tell us what needs to be connected
Describe the task in text or a voice message. We look at your setup and reply with a plan.
What you can order
Four services people come to us for most often. Each page explains what we do, how the work goes and where to start.
CRM implementation
Choose the system, set up the pipeline, migrate data, train the team.
Learn more →CRM integration
Accounting, telephony, website, payments and messengers feed the CRM on their own.
Learn more →Telegram chatbots for business
Orders, requests and answers around the clock, straight into your CRM.
Learn more →n8n and Make automation
Flows between CRM, email, spreadsheets, payments and AI, on your own server.
Learn more →Pairs with PayPal
↔
PayPal ↔ QuickBooks Online
PayPal sales, refunds and processing charges land in QuickBooks Online as proper accounting entries
See scenarios →↔
PayPal ↔ Shopify
PayPal payments for orders agreed outside the checkout find their Shopify order, mark it paid and move it to fulfilment, and refunds go back the same way
See scenarios →Related integrations
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CRMUSSalesforce
Enterprise CRM with a live event feed and no-code automation across every record type
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Accounting & ERPEUXero
Your company keeps its books in Xero? We make sales, payments and bookkeeping talk to each other
See scenarios →Implementation · Development · Integrations →
PayPal is a trademark of its owner. CoreviaFlow is not affiliated with it unless stated otherwise. Screenshots are taken from public vendor materials; the source is shown under each one.