# Could not find that PairSession **URL:** \ **Category:** Devices\ **Tags:** app\ **Created:** [July 4, 2020, 11:37am UTC](https://community.homey.app/t/could-not-find-that-pairsession/32029 "2020-07-04T11:37:38Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Nakkie040](https://avatars.discourse-cdn.com/v4/letter/n/b5a626/32.png) [@Nakkie040](https://community.homey.app/u/Nakkie040)\ **Post date:** [July 4, 2020, 11:37am UTC](https://community.homey.app/t/could-not-find-that-pairsession/32029/1 "2020-07-04T11:37:38Z")
Hi, I’m trying to connect my SolarEdge installation to Homey using the “zonnepanelen” app v4.0.13 but unfortunately i cannot register it, the error says: Could not find that PairSession. I have tested the API key and System ID on [pvoutput.org](http://pvoutput.org) and there everything is working fine. Anyone who can help me configure this on Homey? Thanks in advance! ---
**Author:** ![Caseda](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/caseda/32/138695_2.png) [@Caseda](https://community.homey.app/u/Caseda)\ **Post date:** [July 4, 2020, 11:46am UTC](https://community.homey.app/t/could-not-find-that-pairsession/32029/2 "2020-07-04T11:46:04Z")
can’t find pair session happens when you put Homey’s app to the background during pairing, for example to copy something over. ---
**Author:** ![Nakkie040](https://avatars.discourse-cdn.com/v4/letter/n/b5a626/32.png) [@Nakkie040](https://community.homey.app/u/Nakkie040)\ **Post date:** [July 4, 2020, 12:03pm UTC](https://community.homey.app/t/could-not-find-that-pairsession/32029/3 "2020-07-04T12:03:29Z")
Thats an… interesting feature. Got it working now, thanks a lot! ---
**Author:** ![Martin\_Sharrott](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/martin_sharrott/32/16579_2.png) [@Martin\_Sharrott](https://community.homey.app/u/Martin_Sharrott)\ **Post date:** [July 8, 2020, 8:02am UTC](https://community.homey.app/t/could-not-find-that-pairsession/32029/4 "2020-07-08T08:02:32Z")
I have the SMA Solar app working fine on my Homey; it shows solar panel yield etc. All the communication parameters in the “Installer” mode are turned on and appear to be working. I also created an account at [PVoutput.org](http://PVoutput.org) a few days ago, generated an API key and a short read-only key. When trying to install the PVoutput app on Homey, using the system ID and read-only key, I get the message “Inloggegevens Onjuist” most of the time and occasionally “Can’t find pair session”. No data is being passed to PV output. I’m afraid I don’t understand what you mean by putting the Homey app to the background. It is open when I am trying to install PVoutput on it. What I hope to achieve is to access the more-or-less live production data in order to trigger an electrical boiler, or to turn it off. So far, I have been unable to achieve this. Perhaps you can help get my Homey plus SMA Sloar plus PVoutput working together. Thanks. ---
**Author:** ![Nakkie040](https://avatars.discourse-cdn.com/v4/letter/n/b5a626/32.png) [@Nakkie040](https://community.homey.app/u/Nakkie040)\ **Post date:** [July 8, 2020, 8:38am UTC](https://community.homey.app/t/could-not-find-that-pairsession/32029/5 "2020-07-08T08:38:50Z")
Hi Martin, When adding my SolarEdge installation to Homey I used homey the app on my phone. I switched to my mail where I got my API key and back to the homey app to paste it and that triggered the “Could not find that PairSession” error. To fix that i copied the API key before I opened homey and pasted it without having to leave the app on my phone. ---
**Author:** ![Martin\_Sharrott](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/martin_sharrott/32/16579_2.png) [@Martin\_Sharrott](https://community.homey.app/u/Martin_Sharrott)\ **Post date:** [July 8, 2020, 9:13am UTC](https://community.homey.app/t/could-not-find-that-pairsession/32029/6 "2020-07-08T09:13:39Z")
Hallo Nakkie040, Thanks for your reply. I had assumed one needed to use the short |(read-only) key. I have now managed to log in with the full API key. Now hopefully to start getting it all to work together and communicating with each other… we shall see!