Which OCPP URL do I enter on a ABB for askacharge.com?

wss://askacharge.com/askacharge/ocpp/your-brand, where your-brand is the brand identifier on askacharge.com; the charger appends its identity. The identity must match the one registered in the panel and the password stays blank unless the charger's OCPP credential has been enabled.

Do I lose the manufacturer's app when I set OCPP on a ABB?

Some app functions move to the OCPP platform (start, cards, statistics). The hardware stays the same and you can go back by changing the URL again.

How to change the OCPP server URL on a ABB charger (Terra AC (W7) and connect it to another platform

Q: Can a ABB charger be connected to a platform other than the manufacturer's?

Yes. The Terra AC (W7, W11, W22) models speak standard OCPP and let you change the server URL. In the TerraConfig app (installer account granted by ABB), paired with the charger over Bluetooth: OCPP server → Enable external server. The backend URL is registered beforehand in the TerraConfig portal; the app only picks it from the list.

A ABB charger that speaks standard OCPP can be connected to any platform by changing one setting. Here is where that setting lives on Terra AC (W7, W11, W22), exactly what to enter, and where people usually get stuck. Written by a platform (askacharge.com), but the procedure works for any.

Where the setting lives

In the TerraConfig app (installer account granted by ABB), paired with the charger over Bluetooth: OCPP server → Enable external server. The backend URL is registered beforehand in the TerraConfig portal; the app only picks it from the list.

Step by step

Ask ABB or your distributor for a TerraConfig account ("Connected Services AC Terra" form). Without it the setting cannot be touched; the end-user ChargerSync app does not allow it.
In the TerraConfig portal register the askacharge.com URL as a custom URL (below). For wss:// upload the server root certificate: ISRG Root X1 (Let's Encrypt).
TerraConfig app → log in → Configure a charger → your Terra AC (PIN and product code from the card in the box). Check it has internet (Wi-Fi, LAN or 4G) and current firmware.
OCPP server → Enable external server → pick the preconfigured URL (or Add custom URL) → Configure → OK.
The identity is the product code / serial number (TACW…): register it exactly like that in the panel. Device info shows the active URL and status; it can take up to 10 minutes to show as connected.

What to enter to connect it to askacharge.com

OCPP server URL	`wss://askacharge.com/askacharge/ocpp/your-brand` — your-brand is your brand's identifier on askacharge.com (shown under Chargers → Add, with the full URL ready to copy). The charger appends its own identity; if your unit only has a URL field and no identity field, enter the full URL: `…/ocpp/your-brand/identity`.
Charge point identity	The same one you register in the panel when adding the charger. Case-sensitive. With ABB, the serial number is the easiest choice.
Password	Blank by default. If you enable the charger's OCPP credential in the panel (recommended for units exposed to the internet), the username is the identity and the password is the one the panel generates: OCPP Security Profile 2.
Protocol	OCPP 1.6J (JSON) or OCPP 2.0.1. Subprotocol `ocpp1.6` / `ocpp2.0.1`.
Before connecting	The charger must be registered in the brand with that identity; otherwise the server rejects the connection. Register under Chargers → Add.

Where it usually fails

Several integrator guides say TerraConfig only accepts ws://. That was true on old firmware; ABB's OCPP 1.6 document (v1.8, firmware 1.6.6) supports wss:// with the root certificate loaded in the portal. Update the firmware.
Turn off Free Vending mode under Device Mode if you want authorisation by the platform; and if RFID cards do not work, enable external cards.
From firmware 1.6.5 ABB no longer shows the UID of the bundled cards; read it with the platform (tap the card and look at the rejected attempt).

If your brand isn't here

The procedure is always the same; what changes is where the setting lives: look in the manufacturer's app, in the charger's web interface (by its IP) or in the installer software for a section called OCPP, Back office, Central System or Server. You need to be able to enter the URL and, nearly always, the identity. If the field is locked or missing, the manufacturer has tied the charger to its own platform: read what to do when the manufacturer locks or switches off its server.

Other brands

WallboxPulsar Plus, Pulsar Max, Pulsar Pro, Commander 2, Copper SB AlfenEve Single S-line, Eve Single Pro-line, Eve Double Pro-line, Twin AutelMaxiCharger AC Lite, AC Wallbox, AC Elite, AC Ultra Grizzl-EGrizzl-E Smart, Grizzl-E Smart v2 (North America)V2CTrydan, Trydan Pro CircontroleNext Elite, eNext Park, Raption, Wallbox eHome (with communications module)ZaptecGo, Go 2, Pro EaseeHome, Charge, Charge Core, Charge Lite, One KEBAKeContact P30 x-series (and c-series as clients), P40 Schneider ElectricEVlink Pro AC, EVlink Smart Wallbox, EVlink Parking TeltonikaTeltoCharge (all variants)IngeteamINGEREV Fusion Wallbox, Fusion Street, Rapid OrbisViaris Uni, Viaris Combi+, Viaris City WebastoUnite, Unite MID, Next, Pure OpenEVSEOpenEVSE, EmonEVSE (ESP32 WiFi module)SiemensVersiCharge 48A, VersiCharge Blue 80A, VersiCharge IEC go-eCharger Gemini, Gemini flex, Gemini 2.0, Pro, HOMEfix/HOME+ (V3)EtrelINCH Home, INCH Pro, INCH Duo EVBoxElvi, BusinessLine Gen4 (Everon closed 1 Dec 2025)

How to change the OCPP server URL on a ABB charger