BPC processes your checkout sessions, two-step payments and refunds. FlowMattic sends the events a person should look at to Slack: a payment that failed, a session that expired before the customer paid, money held and waiting to be captured, a refund that went through. Finance and sales teams see the payment trail in team chat.
10 triggers 14 actions 6 example workflows 2 ready-made templates Unlimited runs
When this happens in BPC10 triggers
Do this in Slack14 actions
1. TriggerPayment Failed2. ActionSend Channel MessageWhen BPC fires Payment Failed, FlowMattic runs Send Channel Message in Slack with the data from that event.
You build this in the FlowMattic workflow builder on your own site. See the setup steps
Each one uses only triggers and actions the two integrations ship today, plus FlowMattic's own tools. Where the library has a ready-made template, import it instead of building from scratch.
Ready-made templateA failed payment is a customer who wanted to buy. The post shows the amount and the customer, so someone can check the order and offer another way to pay.
Payment FailedSend Channel Message
View the template A Counter adds up failures and a Filter passes once the count crosses a number you choose. A cluster of failures is often a checkout problem rather than a declined card.
Payment FailedCounterFilterSend Direct Message
Session Expired fires when nobody tried to pay. Sales gets the customer details in a channel and can ask whether something stopped them at checkout.
Session ExpiredSend Channel Message
With two-step payments the money is only held until it is captured. A Slack reminder for finance makes sure each held amount is captured or released on time.
Payment Amount Capturable UpdatedAdd Reminder
Each refund posts with the amount and the payment it belongs to. Finance has a running record to check against the books at month end.
Refund UpdatedSend Private Channel Message
Number Formatter writes the amount in your currency format, so the sales channel reads each successful payment as a clear figure rather than a raw number.
Payment SucceededNumber FormatterSend Channel Message
At the end, every failed BPC payment is posted to your payments channel with the amount, customer and error.
Under Connects in FlowMattic, add a Slack connection with an account in the payments channel.
Create a workflow with the BPC Payment Failed trigger and follow its instructions to send BPC events to the workflow.
Run a test payment that fails, for example with a test card meant to decline, so FlowMattic captures the payment fields.
Add Send Channel Message, choose the channel and write the text from the amount, currency, customer email and failure reason. Test it and switch on.
1. Trigger in BPC
Payment Failed
2. Action in Slack
Send Channel Message
Fields mapped from the earlier steps (a typical setup)
| From BPC | To Slack |
|---|---|
| Payment ID | Message: payment |
| Amount | Message: amount |
| Currency | Message: currency |
| Customer email | Message: customer |
| Failure reason | Message: why |
A trigger starts a workflow. An action is something FlowMattic does in the app as a step.
BPC and Slack connect through FlowMattic on your own site, with no separate automation account in the middle and no charge per run.
Failed payments and expired sessions reach people who can contact the customer while they still want to buy.
Counting failures in the workflow turns a quiet stream of errors into one clear warning for the developer on call.
FlowMattic runs on your own WordPress site with unlimited runs, so every payment event can run a workflow without extra fees.
Create a FlowMattic workflow with the BPC Payment Failed trigger, capture a test failure and add Send Channel Message. Map the amount, customer and failure reason into the text and switch the workflow on.
Payment Funded fires when held money from a two-step payment is captured. Payment Succeeded fires when a payment is successful. Pick the one that matches how your checkout charges customers.
Yes. Payment Canceled is its own trigger. Post it to the same payments channel, or to a private one if finance wants a separate record of cancellations.
Yes. Use a Counter after Payment Failed and a Filter that only continues past a set number. The channel then hears about a pattern, not every single decline.
Did not find your answer? You can browse the help center or ask us directly.
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Reviewed 27 Oct 2026. The example workflows are written with AI from the real triggers and actions of both integrations and checked against them. BPC integration 1.0.0, Slack integration 1.0.
