Receipts Not Sent to OFD: Complete Diagnostics

On the POS terminal or in its reports, the counter of unsent documents is growing, and the customer is already asking where their receipt is in the "My Online Receipts" app. There is no single cause here, but rather a chain of several — we analyze step by step where to start and at which step to stop.

1. How to See the Unsent Documents Counter#

Before fixing, assess the scale of the problem:

• Settlement status report — printed directly from the POS service menu, it shows the number of unsubmitted documents and the date of the oldest one.
• X report — on many models, the header or body of the report also contains a line with the unsent documents counter.
• OFD personal account — the "POS Terminals"/"Devices" section shows the same number from the server side; if it matches the counter on the POS, the communication channel connects at least occasionally.

The date of the oldest unsubmitted document is a key figure: the 30 days until fiscal accumulator (FN) blocking are counted from it (section 5).

2. Step-by-Step Diagnostics#

Check strictly from top to bottom — it only makes sense to check each subsequent item if the previous one has been ruled out.

If all four items are fine, but the counter is still growing, the issue is on the POS side (firmware crash, outdated driver) or OFD side (maintenance); contact operator tech support with the FN number and the date of the oldest document.

3. Specific Case: "POS Cannot Connect to OFD" / Cloud Upload is Stuck#

On smart terminals with a built-in cloud dispatch service, the wording may differ slightly, but the troubleshooting order is the same: internet connection on the terminal itself → subscription status for the cloud dispatch service in the terminal manufacturer's account (this is a separate subscription, not to be confused with the OFD) → OFD settings in the POS app. If a document is present on the terminal but won't send, the background sync service is often stuck; a simple terminal restart usually helps before calling support.

4. Error 103 "Unknown"#

Formally, this means that the POS did not receive a clear response from the OFD server — the cause can be in any link of the channel:

• DNS — the OFD server address does not resolve from the point of sale (check on another device in the same network);
• Port — many OFDs use the standard port 7777 for receiving documents, but this is not a universal rule — the exact port is always provided by the OFD operator;
• Firewall/proxy — the store's corporate network may block outgoing connections to non-standard ports; ask an IT specialist to open the port for the OFD address;
• Certificate/key — an outdated or misconfigured crypto provider on the POS also gives an "unknown" response instead of a clear error.

Start with DNS and the port — this can be fixed without an engineer visit, then involve the service center.

5. 30-Day Limit and FN Lockout#

If a document is not transmitted for 30 calendar days from the moment of creation, the FN (fiscal storage) is blocked — the POS stops printing new receipts, which is equated to operating without a fiscal register for the entire duration of the downtime.

What is important to know about unblocking:

• You do not need to replace or manually "unblock" the FN — as soon as the communication channel is restored and the OFD settings are correct, accumulated receipts are sent automatically, one by one;
• while the bulk sending of the accumulated archive is in progress, the POS may operate slower — this is normal, do not interrupt the process;
• if payments were accepted without receipts during the lock period, these transactions will have to be covered with a correction receipt separately; the FN lockout itself does not cover them.

6. Changing the OFD Without Full Re-registration#

You can change your OFD operator (if the contract has expired or you found a cheaper plan) without re-registering the cash register from scratch, though it cannot be done simply by toggling a setting on your own:

1. Sign an agreement with the new OFD and obtain its details (TIN, host, port).
2. Submit an application for re-registration with the reason "change of OFD" in your FNS personal account — this is not a full registration, but rather a report on changing parameters; however, an application is usually still required.
3. On the cash register, change the TIN and OFD settings in the service menu to the new operator's data.
4. Generate a registration parameter change report on the cash register and enter its data back into the FNS personal account.
5. Wait until the counter of unsent documents at the old OFD drops to zero before terminating your contract with them.

The exact list of reasons that the FNS now accepts without an application at all may vary — check the up-to-date list in your cash register card in your personal account.

7. Receipt is not visible in the OFD dashboard, but the customer is demanding it#

1. Check the receipt number and time directly on the POS (via the log or duplicate) — verify against these exact details, not the cashier's memory.
2. Search for the receipt in the OFD dashboard not only by date, but also by the fiscal document attribute (FPD) — it is printed as a separate line on the receipt and provides a more precise search than time alone.
3. If the receipt is not found at all, it is likely in the unsent queue (see sections 1–2): wait for transmission, and the document will appear retroactively.
4. If the unsent receipts counter is zero, but the receipt is still missing, contact OFD support with the FPD and FN number: this indicates a system error on the receiving side, not on the POS.
5. In the meantime, you can provide the customer with an electronic copy of the receipt from your own sales log — this does not replace the requirement to transmit the document to the OFD, but it satisfies the urgent request.

8. Example#

Coffee shop using a smart terminal: over the weekend, 46 unsent receipts accumulated, and the settlement status report showed a warning about a risk of blocking in 6 days. The administrator checked the Wi-Fi — the network was working; checked the OFD account — and discovered that the prepaid package of 1,000 documents under their plan had run out. After paying for a new package and restarting the terminal, all 46 receipts were sent within half an hour, and nothing had to be unblocked manually.

9. How to do this in Cenaly#

• The electronic log POS → Receipts stores a copy of every issued receipt independently of the OFD — making it convenient to cross-check it against the counter of unsubmitted documents on the POS terminal.
• The Equipment section displays the connection status of the POS terminal connected via Cenaly Hardware Bridge — network loss is visible before a critical counter accumulates.
• If payments were processed entirely without a POS terminal during diagnostics, issue a correction receipt for them: Equipment → POS → "Correction Receipt" (for details, see the guide on correction receipts).

10. Frequently Asked Questions#

The OFD subscription has expired, but the POS keeps issuing receipts — is this normal? Yes, the POS terminal and the OFD subscription are not technically linked directly: receipts are generated and written to the FN regardless of the payment status with the operator. The issue is that without an active subscription, they will not be transmitted — pay for the plan, and the accumulated queue will be sent automatically.

Is it possible to manually speed up the sending of a large archive? Some models have a "Send now" option in the service menu, but usually the POS terminal automatically resends the queue as soon as the channel is open — the force-send option simply provides visual confirmation that the process is ongoing.

FN is locked — do I need to go to the tax office? No, if the lock occurred specifically due to the 30-day limit and connection is restored — this is a technical state of the FN, not an event requiring an application. You only need to notify the FNS if you had to replace the FN itself or change other registration parameters.

How do I find out the correct OFD port and host if I don't have them at hand? Only from your OFD operator — in your personal account, contract, or via technical support. Values vary between operators, and using values "by analogy" from another POS is risky.

Related articles: fiscal memory replacement · POS registration with FNS · power outage and internet loss

This material is for reference purposes only and does not replace consultation with your OFD or POS manufacturer. Primary sources: Federal Law No. 54-FZ "On the Use of CCP", FNS guidelines on operating CCP and FN (kkt-online.nalog.ru), and fiscal data operator regulations.