InvalidTokenException: Unauthorized-401

Question

I am converting a application to use IPP .net API V3. I have already built all the OAuth and saved the token info. Trying to make connection but always get error. I have c

Answer 1

You can try this call as mentioned in the following docs using IPP provided .net devkit.

https://developer.intuit.com/docs/0025_quickbooksapi/0055_devkits/0150_ipp_.net_devkit_3.0/0002_synchronous_calls/0001_data_service_apis

401 clearly signifies that your OAuth tokens/request header is not correct. To debug this, you can use any standard RestClients ( like RestClient plugins of Mozilla browser or Fiddler) where you can set four OAuth tokens [ consumer key, consumer Secret, access Key and access token) and content-type [application/xml]

• URI: https://quickbooks.api.intuit.com/v3/company//customer
• Method: POST
• Content-Type: application/xml

Mozilla RestClient -

Set OAuth Tokens

Set Content-type ( in header )

https://developer.intuit.com/docs/0025_quickbooksapi/0050_data_services/030_entity_services_reference/customer

If the above approach works, that means your OAuth tokens are fine. You need to check and properly construct the header using devdefined then.

If it doesn't work then you need to generate a new set of access Token and Secret using IPP OAuth Playground.

https://appcenter.intuit.com/Playground/OAuth

Thanks