Alexander Ruin

AI Systems Design Consultant

Alexander Ruin — systems design consultant. I help design architecture, assess risks, and establish transparent processes — from technology selection to support. AI executors handle routine tasks. Areas: automation, integrations, AI products.

1C Export Error 2026: How to Fix It in 5 Minutes Without a Programmer

Uploading the 1C database is interrupted with an error — work grinds to a halt, documents don't go out to counterparties, the accounting department is in a panic. In 2026, 90% of upload errors are resolved in 5 minutes using standard methods, and recurring failures are prevented by automatic monitoring.

Key facts

  • Stream format error is the most common issue when exporting/importing XML (resolved by re-exporting).
  • Database error "object already exists" — deleting the 1C temporary directory resolves the issue.
  • Testing and correcting the database through the Configurator fixes 80% of system errors.
  • Clearing the 1C cache helps with freezes and unexpected errors.
  • Automated error monitoring in Telegram prevents downtime.

Types of Upload Errors and Solutions

Error Reason Decision Time
Stream format error XML file is corrupted Repeat the upload, check the disk space 2 min
Database Management System Error #tt2 Temporary files are full Delete the AppData\Local\1C directory 3 min
Error writing file The file is open in another program Close Excel/Notepad, repeat 1 min
Insufficient memory Large volume of data Split the dump into parts 5 min
The database is corrupted. Power failure, viruses Testing and correction in the Configurator 10 min

How to fix a 1C upload error in 3 steps?

Most upload errors can be resolved without calling a programmer — standard procedures are usually sufficient.

Step 1. Clear the cache and temporary files.

Go to the directory C:\Users\ИмяПользователя\AppData\Local\1C\ and delete the temporary files folder. This resolves DBMS errors and hangs during data export.

Step 2. Launch the database testing.

Open the Configuration → Administration → Testing and Repair. Select all checks and click "Run". This will fix broken links and indexes.

Step 3. Set up error monitoring.

To ensure errors don't catch you off guard, the Telegram bot Synchron1S automatically monitors the state of your 1C database and sends notifications for any failures — you'll learn about a problem in minutes, not hours.

Monitoring 1C Errors in Telegram

Telegram bot Synchron1C — real-time 1C error notifications

When do you need a programmer?

Situation You can solve it yourself. A specialist is needed
Stream format error ✅ Yes —
Database Management System Error #tt2 ✅ Yes —
File is corrupted ✅ Yes (testing) If it didn't help
Configuration changed — ✅ Yes
Error in processing code — ✅ Yes

See also

Frequently Asked Questions

What to do if the upload error persists?

Create an archive copy of the database (Configurator → Unload the information base to .dt), then create a new database and load the data. This "resets" problematic settings.

How to prevent upload errors?

Set up automatic monitoring via Sinhron1S — the bot tracks the database status and warns about problems before they become critical.

Error "object already exists" - what is it?

Database error due to overflow of temporary tables. Delete the contents of the folder. AppData\Local\1C\ and restart 1C.

Is it possible to recover data after an error?

Yes, if you have a backup. Always make a backup before performing any manipulations with the database.

Stop wasting time on manual error correction.

Sync1S automatically monitors the 1C database and sends notifications to Telegram for any failures — you learn about a problem in minutes, not hours.

What we are monitoring: - Data upload and download errors - 1C license and service failures - Database anomalies (locks, overflow) - Scheduled task failures - Connectivity issues with banks, marketplaces, EDI systems

Two payment options: - 50.0 USDT/month — subscription, setup free + all updates 30 000 ₽ — one-time payment, setup + updates for a year

Connect monitoring →

Learn more about the features — on the page Synchron1C.

Article prepared by the Sinkhron1S team. Updated: February 2026.

Sources: - https://www.1cbit.ru/blog/oshibki-1s-8-3-i-ikh-ispravlenie/ - https://wiseadvice-it.ru/o-kompanii/blog/articles/populyarnye-oshibki-v-1s/ - https://www.cleverence.ru/articles/elektronnaya-kommertsiya/oshibka-formata-potoka-pri-zagruzke-informatsionnoy-bazy-v-programme-1s/ - https://www.santogroup.ru/articles/oshibki-1s-8-3-klassifikatsiya-oshibok-i-kak-ikh-ispravit-samostoyatelno/ - https://wiseadvice-it.ru/o-kompanii/blog/articles/oshibka-formata-potoka-v-1s-kak-ispravit/

About the service "Sync1C - 1C Automation Without a Programmer"

A universal solution for automating export, import, integrations, and monitoring of 1C through a simple dialog in Telegram. Set up in 15 minutes without involving a 1C programmer.

Key Benefits:

  • 💰 Savings on analysts and 1C programmers (from1,000 USDT/month)
  • ⚡ Automated Reporting – from 4 hours down to 5 minutes
  • 🧠 AI detects anomalies and trends that a human might miss.
  • 📊 Dashboards are available in real-time via Telegram or web
  • 🔄 Universal integration - set it up once, works with all systems.
  • 📱 Control from anywhere in the world via Telegram
  • 🎯 This is a custom development tailored to your needs.
  • 📞 Free consultation on integration

Target Audience:

Director of Digital Development Chief Financial Officers (CFOs) Heads of IT departments Heads of Analytics Departments Business owners (small/medium-sized businesses) 1C integrators and implementers

Use Cases:

💡 Daily automatic export of sales to Excel
💡 Real-time stock synchronization with Ozon and Wildberries
💡 Auto-upload of bank statements from Sberbank/VTB into 1C
💡 Receiving notifications about 1C errors and failures in Telegram
💡 Import orders from marketplaces into 1C automatically
💡 Exchange of UPD (Universal Transfer Document) via Sbis/Diadoc without manual work
💡 Fiscalization of receipts through Atol/Evotor from 1C
💡 AI Analysis of Sales and Inventory with Anomaly Detection
💡 Real-time sales/financial dashboards in Telegram
💡 Accounts Receivable Control via Telegram Bot
💡 Importing supplier price lists from Excel into 1C