I am developing C#.net application to utilize Education School API endpoints , but getting 403 forbidden error. the below endpoint references - https://api.sky.blackbaud.com/school/v1/academics/courses
https://api.sky.blackbaud.com/school/v1/academics/departments
If I executing the endpoint over SKY API console, then it is working fine, but it is not working while trying through application. I am using the sample application which i downloaded from github is "sky-api-tutorial-auth-code-c-sharp" and modified and customized to use education endpoints. I got below error
Debug InfoNote: using Standard Tier subscription, Blackbaud ID - Full Access - Environment Admin
SKY API Application having Read/Write Access.
Please help me to proceed further to explore the API Endpoint reference.