Title: Approved Sandbox VPP app — authentication and temporary enrollment for eligibility
We are developing Solar Battery Optimizer. Our application shows Approved, Sandbox, VPP, and OAuth Code Mode.
Our intended journey is: customer consents to VPP enrollment → we assess eligibility without sending control commands → we offboard the device if unsuitable or the customer withdraws. For eligible customers, control starts only after separate service acceptance.
Could you clarify:
1. Our app is approved for Sandbox, but the documentation says Sandbox is “Coming Soon.” What exact sandbox address should we use for `/oauth2/client_token`? Can we test platform authentication before enrolling a device?
2. Are sandbox test devices provided, and are they simulated or physical? We do not want to use a personal or customer inverter for development tests.
3. Is the temporary VPP-enrollment journey above supported? Does enrollment itself change device operation or restrict the customer’s normal FoxESS app controls, even when we send no commands?
4. For our OAuth Code Mode app using a client-credentials token, is `/op/v0/vpp/oauth2/client/offboard` the correct way to release an individual device? Does release immediately restore normal customer control? Does it preserve or clear existing schedules, and how can we verify completion?
5. The VPP guide specifies `Authorization: Bearer`, while endpoint references also require a `token` header. Which headers apply to our app?
6. For the customer return page, does FoxESS return a security `state` value alongside `deviceSn`? How should our backend verify that the device was genuinely enrolled to our application?
Please point us to current documentation or examples with dummy credentials. We will not post secrets or access tokens publicly.
This is a Fox ESS community web site and does not have any Fox personnel actively reading the posts.
I don't know if any of these links will help with what you are looking for, the first is a link to the OpenAPI documentation https://www.foxesscloud.com/public/i18n ... ument.html, the second is to their own technical resource forum https://fox-ess.tech/.
I don't know if any of these links will help with what you are looking for, the first is a link to the OpenAPI documentation https://www.foxesscloud.com/public/i18n ... ument.html, the second is to their own technical resource forum https://fox-ess.tech/.