How Do I Register an Existing TSE in My Cash Register System?
Questions:
- How to link existing Deutsche Fiskal TSE?
- What details are required for TSE registration?
- Can I use my old TSE again?
- What is FCC ID in TSE?
Description:
If you have already created a TSE in the Deutsche Fiskal dashboard, there is no need to generate a new one. You can simply register the existing TSE inside your POS system using the provided credentials.
This process is commonly required when switching POS systems, reinstalling software, or configuring a new terminal. Instead of creating duplicate TSEs, you reuse the active one assigned to your business.
Proper TSE registration ensures compliance with German cash register regulations (KassenSichV). Entering the correct FCC ID and API details allows secure communication between your POS and the fiscal cloud system.
Always verify credentials before saving, as incorrect entries may cause connection errors or failed signatures during transactions.
Solution:
Steps to Register an Existing TSE in POS
- Open your Deutsche Fiskal dashboard
-
Copy Required TSE Credentials
Collect the following details:
- FCC ID
- API Endpoint
- API Secret
- Serial Number
-
ERS Code
-
Open POS TSE Registration Section
In TYRIOS, go to Cash Register System → Administration → Manage TSEs
- Select Deutsche Fiskal
-
Paste All Credentials
Enter the copied FCC ID, API endpoint, API secret, serial number, and ERS code carefully.
-
Save Configuration
Click Save to register the TSE in your POS system.
-
Test Connection
Use the “Test Connection” option to verify successful communication with the TSE.
-
Assign TSE to Terminal
After successful validation, assign the TSE to the correct cash register terminal.
Tips and Tricks:
- Double-check copied credentials (even a small typo can cause connection failure).
- Ensure the TSE belongs to the correct business location before linking.
- Always test connection before assigning it to a live terminal.
- Do not create duplicate TSEs unless required — reuse active ones.
- Confirm the TSE status is Active in the Deutsche Fiskal dashboard.
- Keep API credentials secure and do not share them publicly.
- If connection fails, verify firewall or network restrictions blocking API access.