# We don't recognise this app - Error while authorising my app

**URL:** <https://api-discuss.freeagent.com/t/we-dont-recognise-this-app-error-while-authorising-my-app/517>\
**Category:** Uncategorized\
**Created:** [24 November 2015 13:06 UTC](https://api-discuss.freeagent.com/t/we-dont-recognise-this-app-error-while-authorising-my-app/517 "2015-11-24T13:06:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sam\_Plews](https://api-discuss.freeagent.com/letter_avatar_proxy/v4/letter/s/b38774/32.png) [@Sam\_Plews](https://api-discuss.freeagent.com/u/Sam_Plews)\
**Post date:** [24 November 2015 13:06 UTC](https://api-discuss.freeagent.com/t/we-dont-recognise-this-app-error-while-authorising-my-app/517/1 "2015-11-24T13:06:30Z")

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Hi,

I have an issue where an app I wrote that has been working fine has  
suddenly stopped working the the error after I log in to FreeAgent while  
trying to authorize the app:

Sorry, there’s been a problem.

We don’t recognise this app. Please get in touch with the author of the  
application you’re trying to approve.  
The I’ve tried re-generating the tokens and putting the new tokens in my  
app but to no avail. I’ve also tried authenticating using the google OAuth  
sandbox and get the same error.

My app is called FATT ([https://dev.freeagent.com/apps/1389](https://dev.freeagent.com/apps/1389)) and the (new)  
OAuth Id is: TzcqWgPMA0Vsonbt1JU3jQ

Thanks,  
Sam

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**Author:** ![Caius\_Durling](https://api-discuss.freeagent.com/letter_avatar_proxy/v4/letter/c/edb3f5/32.png) [@Caius\_Durling](https://api-discuss.freeagent.com/u/Caius_Durling)\
**Post date:** [24 November 2015 16:33 UTC](https://api-discuss.freeagent.com/t/we-dont-recognise-this-app-error-while-authorising-my-app/517/2 "2015-11-24T16:33:15Z")

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Hi Sam,

We pushed out a release earlier that broke API Approval in a subtle manner which we didn’t catch beforehand. I’ve just released a fix for it (and added regression tests around the subtle change to prevent us missing it in future.) so you should be able to approve your API Application properly now.

Sorry about that, and please get back in touch if it’s still not working for you.

Thanks,  
C  
Caius Durling  
Engineer, FreeAgent

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