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Lorena VasquezLorena Vasquez 

LOGIN_OAUTH_API_DISABLEDFailed: OAuth Api Access Disabled"

When attempting to bring Zendesk tickets into Salesforce and setting up the trigger in Zendesk I receive this error message: "Error during transmission: Salesforce Login Failed (Account: xxx): LOGIN_OAUTH_API_DISABLEDFailed: OAuth Api Access Disabled".

I am using Salesforce Professional. According to this article, I should be able to integrate:
https://support.zendesk.com/hc/en-us/articles/203660026#topic_ptq_bqx_g4

How can I enable OAuth Api Access in Salesforce Professional?

Please help!
 
SandhyaSandhya (Salesforce Developers) 
Hi,

For  Salesforce Professional Edition API will not enabled by default.

For Professional Edition organizations, all requests for API access must be purchased and can be processed contacting your Account Executive.
If you need the API enabled for a Data Migration to a Professional Edition organization, you will need to contact your Account Executive and request that API be provisioned as courtesy. These requests should be for Data Migrations only and will be up to you and your Account Executive to determine the time frame of the API enabled.

Refer below help article.
https://help.salesforce.com/articleView?id=000005140&type=1
 
Please mark it as solved if my reply was helpful. It will make it available for other as the proper solution.
                                             
Best Regards
Sandhya