New version of Growatt Hybrid not working in Homey Pro

[OH2TH]

Hello and welcome to the forum.

Did you search first before posting your question? There is a recent topic that Growatt has removed their API for use by individual users:

Growatt API

Growatt app doesn’t work anymore since afew days. Support desk Growatt send me the following: At this time, the Growatt API is not available for use with individual user accounts. General API keys that previously worked are no longer supported and will be phased out. The Growatt API, which is currently still active, is primarily for managing installer portals with multiple systems. There is currently no other officially supported way to share data with third parties, or extract data direc…