I'm getting the OAuthTokenIsInvalid error

When making calls to the MYOB API you will need to ensure you have the correct authorisation headers. One of these of course is 

Authorizaion: "Bearer {{access_token}}

If you find yourself getting the following error:

{
	"Name": "OAuthTokenIsInvalid",
	"Message": "The supplied OAuth token (Bearer) is not valid",
	"AdditionalDetails": "Header",
	"ErrorCode": 31001,
	"Severity": "Error",
	"LearnMore": null
}

You can try the following things to correct this:

• Check you have not URL Encoded the access_token
• Check the token is exactly as provided to you and not missing any extra characters
• Check that you used the correct scope when asking for the token
  • CompanyFile - for AccountRight
  • la.global - for Essentials
  • CompanyFile la.global - for both
  • You can not use an Essentials requested token to talk to AccountRight
• Make sure your API Key matches the key the token was generated for
  • If you have switched keys you'll need to reauthorise
  • Ensure any new keys are active

If you have tried these items and are still having trouble, please submit a support request.