C# App has worked for years (MYOB.AccountRight.SDK.dll) Upgrade forced, now broken

[Cottontech]

Using 2019 version for years, MYOB forced upgrade to current model. Was working OK for a week but now throws 404 error. Authentication passes OK (401 not thrown) so underlying connectivity correct but any querying of invoice pages or anything else throws 404. 

Any suggestions before I do a deep dive ?

? ex
{"The remote server returned an error: (404) Not Found."}
Data: {System.Collections.ListDictionaryInternal}
HResult: -2146233079
HelpLink: null
InnerException: null
Message: "The remote server returned an error: (404) Not Found."
Response: {System.Net.HttpWebResponse}
Source: "System"
StackTrace: " at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)\r\n at MYOB.AccountRight.SDK.Communication.BaseRequestHandler.HandleResponseCallback[T,TResp](IAsyncResult asynchronousResult)"
Status: ProtocolError
TargetSite: {System.Net.WebResponse EndGetResponse(System.IAsyncResult)}

[Genreve_S]

Hi @Cottontech, 

Thanks for posting. 

I'm sorry to hear about your issue. Since the issue is about AccountRight in a server, you will need help from a specialist for a server version of AccountRight. I would suggest calling phone support for help on this one. Here is the phone number 1300555123.

In the meantime, let us know if you need any other assistance. 

Cheers, 
Genreve

[JeremyF]

This could be an issue I came across with HTTP 1 v HTTP2 responses. 

It's server dependent.

The header information is some times capitalised which can throw errors. 

[Genreve_S]

Hi @Cottontech, 

Thanks for your insight. 

We appreciate users who help other users in the forum. If @Cottontech can't find any help in the forum, it's best that he speaks to someone on the phone. 

Cheers, 
Genreve

[Cottontech]

Hello, 

All sorted. I should have mentioned the URI was LocalHost based so isn't a server problem, all on the same laptop. 
I fixed the issue, notes below:

5/10/23 Currently unable to use eBay tools to interact with MYOB Database since upgrade.
https://my.myob.com.au/Bd/pages/MyProducts.aspx
s/n info:
MYOB AccountRight Standard - 2023.7 - (Serial Number {removed})

Is this the connector ? Am going to try to uninstall MYOB completely and ensure following folders are empty:
C:\Users\{edit}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ shortcuts inc MYOB AccountRight AddOnConnector
C:\Users\{edit}\AppData\Local\Programs\MYOB\AccountRight\Huxley.Application.exe
C:\Users\{edit}\AppData\Local\Programs\MYOB\AccountRight\app-2023.800.10002
C:\Users\{edit}\AppData\Local\Programs\MYOB\AccountRight\app-2023.800.10002\AddonConnector\MYOB.AccountRight.API.AddOnConnector.exe
C:\Users\{edit}\AppData\Local\Programs\MYOB\AccountRight\app-2023.800.10002\AddonConnector
Also look for adjacent folders from older installations, Search MYOB, and check registry.

Do this and then try to connect again (once successfully operating using MYOB App).
- On Add Remove there are two versions, the recently installed 'upgrade'and the original 2014.2.16.3881. Uninstalled both
- Rebooted, ran C:\Users\{edit}\MYOB Installer\MYOB_AccountRight.exe. Installed and started OK
- Opened current file > Opened OK!
- Look at connector situation > Add on connector running OK
- Try my Application > YES!!!! Everything works !!

No idea why it broke but the old Uninstall > Clean-up > Re-install worked. 

Thanks for all

[Genreve_S]

Hi @Cottontech, 

Thanks for your update. 

I'm glad you have fixed the issue. 

If you require any other assistance, feel free to post again in the forum. 

Cheers,
Genreve