I am trying to connect the tax web application with the HMRC sandbox, after I get the authorization code and input to get the access token I receive an error saying that /An error occured while trying to obtain access token./ The attachment with template not found./ as showing in the image below.
I trying checking the Import token model mapping along with the other mappings in the Message processing actions but with no luck.
I would be grateful if any one can help with this issue or have a complete guide on how to set up MTD from scratch.
Making Tax Digital - An error occured while trying to obtain access token.
Hello,
I opened a ticket and Microsoft answered to disable the following feature "Run ER import of manually uploaded documents in batch". Afterwards, I successfully obtained the access token
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