I'm currently having a challenge setting up a Sage One App with Postman using the procedures in https://developer.sage.com/api/accounting/quick_start_guide/
Upon requesting for a Token and selecting the country 'ZA' for my Sage Business Cloud account, i get an 'Internal Server Error' message. Please assist.
the API you are trying to use can only be used for Sage Business Cloud Accounting in four European countries and the US (https://www.sageone.com/?clear&filter=apiv3). South Africa has a totally different product, even though branded under the same name. However, there is an API for Sage Business Cloud Accounting in South Africa, you will find more information here: https://www.sageone.co.za/api-overview/