I forgot the administrator password. What should I do?

On the server itself, use the 'I cannot sign in' link on the login screen (/kurtarma); typing the new password twice is enough. The same thing can be done from an administrator command prompt with TcmbKur.App.exe reset-admin.

Support

FAQ and troubleshooting

Q: The JPY rate looks 100 times too large.

TCMB quotes some currencies per 100 units. Turn on the 'Divide by unit' option in the rate-fetching step.

Q: I cannot open the panel from another computer.

Network access has two legs: the service has to listen on the network address and there has to be a firewall rule. When you pick 'Local network' as the access scope in the setup wizard, the product does both for you.

The questions that come up most often in the field, and what the error texts on the screen actually mean. If you cannot find your case here, write to support with the log file for the day in question.

Activation

The screen shows an activation warning. What should I do?

Follow the guidance on the screen; if it persists, contact ERP support. At this stage the application still fetches rates and the panel works; only the step that writes to Logo is on hold.

ERP services cannot be reached. Will the application stop?

No. The application keeps the last valid decision in its cache and carries on through a network outage. Rate fetching, the panel, the logs and updates are unaffected.

If I reinstall the machine, are my settings lost?

No. Activation and the device identity are kept outside the application folder, under %ProgramData%\ERP\Lisans\TCMBKUR; the uninstall script preserves that unconditionally and an automatic update does not touch the folder either. Your settings live in the dbo.TCMBKUR_Config table in the Logo database.

Rates and the calendar

The rate written for today came from yesterday's bulletin. Isn't that wrong?

It is correct. The TCMB bulletin is published every business day at 15:30 and is valid for the next business day; that is why target day D uses the D-1 bulletin. If a weekend or a holiday falls in between, the source bulletin comes from further back. Details: the TCMB bulletin calendar.

No rates were written at all today.

Check in this order: was the machine switched on at that hour, is the ERP TcmbKur service running, is there a record for that day on the Runs screen, and if there is, what was its result. If no bulletin was published for the target day at all (a holiday), writing nothing is the expected behaviour.

The rates are incomplete, some currencies are missing.

If the fetch ran before the publication hour, early-fetch protection blocks the incomplete data. Beyond that, XDR is excluded by default and currencies not selected in the wizard are not written — check the selection in the rate-fetching step.

I corrected a rate by hand in Logo. Will the next run overwrite it?

No. Rows that were changed by hand are skipped, and the report says they were skipped.

Can I have rates written for a past day?

Yes. Pick the date on the Rates screen and start the fetch by hand; the application finds the correct bulletin for that day itself.

Are numbers written with a comma or a dot?

The screen uses Turkish formatting (dot for thousands, comma for decimals). The value written to the database is a numeric type; it is not affected by the display format.

Writing to Logo

I get "INSERT permission was denied ... LG_EXCHANGE_xxx".

The service runs as LocalSystem and connects to the Logo database as NT AUTHORITY\SYSTEM. That account has no write permission on the exchange-rate tables of the company concerned. On the SQL Server side, grant NT AUTHORITY\SYSTEM the necessary permission in the Logo database and restart the service. Since 1.5.0 the application also keeps its own tables there (dbo.TCMBKUR_*), so the expected role is db_owner; the installer grants it for you.

Which rate is written into which Logo field?

RATES1 foreign exchange buying, RATES2 foreign exchange selling, RATES3 banknote buying, RATES4 banknote selling. RATES1 is the active rate Logo uses in transactions — talk to accounting before changing the mapping. Table: Logo rate fields.

I wrote with the wrong settings. Can I undo it?

Yes. Select that run on the Runs screen and undo it; only the rows written by that run are reverted.

The JPY rate looks 100 times too large.

TCMB quotes some currencies per 100 units. Turn on the "Divide by unit" option in the rate-fetching step.

Access and passwords

I cannot open the panel from another computer.

The default scope is this server only: the panel opens from the machine it is installed on, over http://127.0.0.1:<port>. Network access has two legs — the service has to listen on the network address and there has to be a firewall rule; opening the firewall by hand is not enough on its own. When you pick Local network as the access scope in the setup wizard, the product does both for you (the rule is opened on the domain and private profiles only), and it removes the rule again when you switch back to This server only.

Where do I find the port number?

It is written in C:\ERP\TcmbKur\listen-url.txt.

I forgot the administrator password / I cannot sign in at all.

Open the login screen on the server itself and click I cannot sign in (/kurtarma). Type the new password twice: the account is created as an administrator if it is missing, or its password is reset if it exists. That screen is invisible to anyone connecting remotely. If you prefer the command line, .\TcmbKur.App.exe reset-admin admin does the same. Details: Password reset.

I do not know what the first password is after installation.

If you typed an administrator password in the last wizard step, that one; if you left it empty, admin / admin, which must be changed during the first session. At the server console the login screen states this already; if it does not, the account is no longer at its setup default — use the recovery step above.

Error messages

Message	What it means and how to fix it
`Unexpected token '<', "<!DOCTYPE "... is not valid JSON`	The setup screen is asking questions of a service whose installation is already complete (a bookmark, or a tab left open). From 1.5.5 on, that address shows an "Installation complete" card instead of the wizard in this situation. On an older version, update; meanwhile use `/login` to reach the management panel.
`Error occurred during a cryptographic operation.`	The encrypted settings cannot be opened with the key that protects them. This usually happens when the database is restored from a backup without the `keys` folder being restored with it. Restore the backup together with `keys`; if that is not possible, enter the encrypted fields (SQL password, SMTP password) again from the wizard.
`INSERT permission was denied ... LG_EXCHANGE_xxx`	The `NT AUTHORITY\SYSTEM` account has no write permission in the Logo database — see above.
ERP services cannot be reached	A temporary network problem. The application does not lock; it carries on with the cached decision. Check access to `lisans.erp.tr` over port 443.
Bulletin not found	No bulletin was published within the back-walk window for the target day. During long holidays, increase the number of days searched.
Service failed to start / `/healthz` does not respond	A port conflict or the SQL connection. Check the port in `listen-url.txt` and that day's log file.