# DEP - Application not found error

**URL:** <https://developer.community.nhs.uk/t/dep-application-not-found-error/13590>\
**Category:** e-Referral Service (e-RS)\
**Created:** [17 July 2026 11:26 UTC](https://developer.community.nhs.uk/t/dep-application-not-found-error/13590 "2026-07-17T11:26:51Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![sean.nesbitt](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sean.nesbitt](https://developer.community.nhs.uk/u/sean.nesbitt)\
**Post date:** [17 July 2026 11:26 UTC](https://developer.community.nhs.uk/t/dep-application-not-found-error/13590/1 "2026-07-17T11:26:51Z")

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Hi Support,

For DEP environment ,

application names

RAMSAYHEALTHCARE-MAXIMS-DEP-Application Restricted  
and  
RAMSAYHEALTHCARE-MAXIMS-DEP-User Restricted

we’re seeing a response for both application and user restricted endpoints,

Unable to identify proxy for host: secure and …

errorcode: “messaging.adaptors.http.flow.ApplicationNotFound”

We’ve checked the api keys and secrets and they seem to be correct.

Please check for us,

Many thanks  
Sean

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**Author:** ![tony.marsh1](https://dub1.discourse-cdn.com/nhsdigitaldeveloper/user_avatar/developer.community.nhs.uk/tony.marsh1/32/855_2.png) [@tony.marsh1](https://developer.community.nhs.uk/u/tony.marsh1)\
**Post date:** [17 July 2026 15:26 UTC](https://developer.community.nhs.uk/t/dep-application-not-found-error/13590/2 "2026-07-17T15:26:20Z")

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Sean

We will pick this up for you next week and see if we can help resolve 👍🏼

Could you post the app ids and a correlation id also

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**Author:** ![sean.nesbitt](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sean.nesbitt](https://developer.community.nhs.uk/u/sean.nesbitt)\
**Post date:** [20 July 2026 16:36 UTC](https://developer.community.nhs.uk/t/dep-application-not-found-error/13590/3 "2026-07-20T16:36:43Z")

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Hi @tony.marsh1

thank you for looking into this for us.

Details as requested  
App name RAMSAYHEALTHCARE-MAXIMS-DEP-User Restricted  
application id 6f7c88c0-7a5e-4fa5-9fb3-92d1704d943f  
correlation id 868DF5BA-D892-446A-9722-9DF9895B77E2

Kind Regards,  
Sean

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<div class="post-metadata">

**Author:** ![tony.marsh1](https://dub1.discourse-cdn.com/nhsdigitaldeveloper/user_avatar/developer.community.nhs.uk/tony.marsh1/32/855_2.png) [@tony.marsh1](https://developer.community.nhs.uk/u/tony.marsh1)\
**Post date:** [21 July 2026 15:21 UTC](https://developer.community.nhs.uk/t/dep-application-not-found-error/13590/4 "2026-07-21T15:21:44Z")

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Thanks Sean, I’ve asked the delivery partner to investigate.

@navin.bose Do you think your team could check too, this may be upstream of e-RS

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**Author:** ![Thomas\_Hague](https://avatars.discourse-cdn.com/v4/letter/t/b38774/32.png) [@Thomas\_Hague](https://developer.community.nhs.uk/u/Thomas_Hague)\
**Post date:** [24 July 2026 09:29 UTC](https://developer.community.nhs.uk/t/dep-application-not-found-error/13590/5 "2026-07-24T09:29:52Z")

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Hi Sean,  
Had a look at this in Splunk in our e-RS logs, but found no no matching events for that correlation ID/error in those streams.  
The error you shared (messaging.adaptors.http.flow.ApplicationNotFound) looks to be raised in the APIM/messaging gateway layer rather than ERS app-layer logs.  
So as Tony says, at the moment this looks upstream of ERS, likely routing/app-product mapping in DEP rather than key or secret format at your side. We will see what the delivery team come back with.

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**Author:** ![sean.nesbitt](https://avatars.discourse-cdn.com/v4/letter/s/58956e/32.png) [@sean.nesbitt](https://developer.community.nhs.uk/u/sean.nesbitt)\
**Post date:** [29 July 2026 09:19 UTC](https://developer.community.nhs.uk/t/dep-application-not-found-error/13590/6 "2026-07-29T09:19:59Z")

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Hi @Thomas_Hague , thank you for the feedback, we would like to get this resolved for our customer as soon as possible. @tony.marsh1 Is there any contact within the delivery team that we can get an update? Please feel free to email directly.

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<div class="post-metadata">

**Author:** ![tony.marsh1](https://dub1.discourse-cdn.com/nhsdigitaldeveloper/user_avatar/developer.community.nhs.uk/tony.marsh1/32/855_2.png) [@tony.marsh1](https://developer.community.nhs.uk/u/tony.marsh1)\
**Post date:** [29 July 2026 11:46 UTC](https://developer.community.nhs.uk/t/dep-application-not-found-error/13590/7 "2026-07-29T11:46:41Z")

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> [@sean.nesbitt](#):
>
> 6f7c88c0-7a5e-4fa5-9fb3-92d1704d943f

@sean.nesbitt I’ve raised an APIM investigation on your behalf - under CS1569451