Payments & POSUAThe cash register that sends the receipt to the tax office the moment payment goes through
Checkbox is the cash register behind the receipt: the moment payment goes through, the receipt is sent to the tax office on its own, no manual punching needed. Test mode and live mode work the same way, so everything can be checked for free before going live. We connect the register to your payment flow — directly where that's built in, and through the AssetPayments service where the receipt isn't sent to the tax office by Checkbox itself but by an outside provider.
Before a cashier manually punches the receipt after checking the payment went through.
After the register is set up directly in the monobank dashboard, and the receipt goes to the tax office on its own — no manual step.
Before a separate connection has to be built from scratch for each payment method.
After LiqPay and WayForPay are already connected to Checkbox through the AssetPayments service, so we plug in an existing bridge instead of building a new one.
Before the client's server keeps checking on its own whether the receipt is ready.
After Checkbox notifies the server the moment the receipt's status changes, retrying for a full day if it doesn't answer.
Before the link between the register and the CRM is built as a separate project.
After a ready module through AssetPayments already covers KeyCRM, Uspacy, SalesDrive and Salesforce, so the receipt attaches to the order without custom development.
Before testing the flow means registering a real cash register with the tax office.
After the free test mode creates a test register and cashier automatically, with up to 100 test receipts a month.
For those who want to check: each point links to the official documentation page it comes from.
The Checkbox PRRO API runs on a single host, api.checkbox.ua, for both test and live mode — an open RESTful API.
Source: wiki.checkbox.ua ↗ checked 2026-09-25API authorisation uses a JWT token issued via cashier PIN or login/password (not OAuth); a single cashier can hold no more than 3 active tokens at once.
Source: wiki.checkbox.ua ↗ checked 2026-09-25Webhooks are set up with a POST /api/v1/webhook call, the URL is saved separately per cash register, and the request body is signed with HMAC-SHA256, verified via the x-request-signature header.
Source: wiki.checkbox.ua ↗ checked 2026-09-25If the integration server responds with an error (code ≥400) or doesn't answer within 10 seconds, Checkbox retries the webhook for up to 24 hours with an exponential backoff (from 1 second to 30 minutes).
Source: wiki.checkbox.ua ↗ checked 2026-09-25monobank's internet acquiring is natively integrated with Checkbox right in the monobank web dashboard (menu Payment on site → integrations → PRRO setup → checkbox).
Source: wiki.checkbox.ua ↗ checked 2026-09-25Fiscalisation of LiqPay, WayForPay, Mono Checkout and NovaPay payments in Checkbox doesn't work directly — it goes through the AssetPayments service, which accepts the payment itself and opens the shift / creates the receipt.
Source: wiki.checkbox.ua ↗ checked 2026-09-25The test register allows no more than 100 receipts a month — after that Checkbox prompts you to register a live register and cashier with the tax office. A single cashier can hold no more than 3 active tokens at once.
Three steps from a first message to work on your project.
Describe the task in the form — in text or by voice. Budget and timing are optional.
A developer studies the brief, asks about anything unclear and sends an estimate.
Once scope and price are agreed, the work begins.
or write to info@coreviaflow.space
Describe the task in text or a voice message. We look at your setup and reply with a plan.
Four services people come to us for most often. Each page explains what we do, how the work goes and where to start.
Choose the system, set up the pipeline, migrate data, train the team.
Learn more →Accounting, telephony, website, payments and messengers feed the CRM on their own.
Learn more →Orders, requests and answers around the clock, straight into your CRM.
Learn more →Flows between CRM, email, spreadsheets, payments and AI, on your own server.
Learn more →
↔Receipts from 1С/BAS are fiscalised in Checkbox and come back as closed sales
See scenarios →↔
The fiscal receipt is issued when the parcel is on its way, and the delivery status closes the order without a manager
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CRMUAUkrainian CRM that pulls orders from your site, marketplaces and chat apps into one pipeline
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CRMUAThe CRM built for order-taking: every lead from every channel lands in one place on its own
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Payments & POSUACard payments that connect straight to the Checkbox cash register, plus 50+ ready platform connections
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Payments & POSUACard, Privat24, Apple Pay and Google Pay — every payment method on one checkout page
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Payments & POSUAPayments with a hold before charging and scheduled recurring charges for subscriptions
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Payments & POSUACard payments that reach the client's order the moment they clear — without card data ever touching your server
See scenarios →Implementation · Development · Integrations →
Checkbox 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.
