MTD

I have a customer that needs to Authorise their MTD and it keeps coming back failed. I ran the debug and it shows the following error

{"code":"CLIENT_OR_AGENT_NOT_AUTHORISED","message":"The client and/or agent is not authorised."}

Normally I then get the customer to log into the government gateway and then we realised it's the wrong account or VAT isn't set up. But this isn't the case here. Does anyone know where the token is located as I am starting to suspect this is not overwriting properly.

Many thanks

Felicity

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Pegasus - Partner General Discussions

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claire-craig

Hi Felicity,

I got the below from Pegasus quite a while ago when attempting to setup MTD for a customer who was very locked down, hoping this helps somewhat..... hopefully it's readable :-)

edward

Hi Felicity,

Did you manage to resolve this issue?

We have a customer experiencing the same thing and the MTD debug is giving us the same message.

Many thanks

fzw

Hi Ed

If I remember rightly this came back to the pops again, although I hadn't seen this for a while and the error was slightly different which was why it didn't occur to me to begin with.

Below is the word document they attached to the call log hopefully it is still readable.

Felicity

How to re-authorise the MTD VAT Centre using Edge as follows:

1. Open the MTD VAT Centre in Opera and click “Yes” to authorise.
2. When the web page loads up do NOT click continue but right-click on the web page and select 'Properties'.
3. Copy the 'Address (URL)'. E.g. https://www.tax.service.gov.uk/oauth/start?auth_id=62f4f20d61bfee622ff6b926&state=20091ADMIN

4. In Edge:
Click the ellipsis at the top right
Settings
Default Browser
Change Allow sites to be reloaded in Internet Explorer mode (IE mode) to Allow

In Internet Explorer mode pages click Add
Paste in the URL from stage 3.
Restart Edge
6. Paste the URL into the address bar, enter gateway details and sign in.

7. A popup will appear advising about internet redirection. Tick the box 'In the future, do not show this warning' and then click on Yes. It should sign in and the web page appears to enter the access code.

8. Close down Edge

9. Go back to Opera, open the MTD VAT Centre (close and reopen if still open from step 1).

10. Click yes to authorise and follow the process through and it should now work.

NB: The customer may need to add more sites to the IE mode pages, depending on the redirection from HMRC.

andrew-warden

HI Another option we have found that resolves mtd issue is for the IT team to allow Edge as IE on the server and on the local PC

frank-kamau

These are effectively two different issues.

1. The Error "CLIENT_OR_AGENT_NOT_AUTHORISED"
This is an error message from HMRC that indicates an issue with the account being used. For example you may have signed into the HMRC Government Gateway using the account of your accountant/agent whereas HMRC were expecting you to use your own account.

2. For the popup issue, MTD VAT Centre will not authorise (due to a missing popup). You need to authorise using Edge.

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