I wish to make Rest API Calls to Marketing Cloud for an update in Salesforce instance sending emails through Marketing cloud to Customers.
When I researched on how to implement it, It has a basic requirement of access token, which can be generated with the help client Id and Client Secret, which in turn can only be generated through App Center.
Is there any other way to get client Id and client secret for generating access token to make Rest API Calls without involving App Center.
Please suggest.