Craete Blackboard course through REST API

Hi, I have successfully created Blackboard course through REST API By posting the following  json object :

{"id":"2000_moataz","uuid":"2000_moataz","externalId":"2000_moataz","courseId":"2000_moataz","name":"2000_moataz","created":"2017-02-28T08:13:23.179Z","organization":true}

The response is Ok and the message was it is successfully created. I have tried to search the course through the rest API   (learn/api/public/v1/courses/externalId:2000_moataz)

and i find it as:

{"id":"_47255_1","uuid":"a3f00c9ce4754c359a64043a35115d1e","externalId":"2000_moataz","dataSourceId":"_2_1","courseId":"2000_moataz","name":"2000_moataz","created":"2017-02-28T10:19:12.000Z","organization":true,"ultraStatus":"Classic","allowGuests":true,"readOnly":false,"availability":{"available":"Yes","duration":{"type":"Continuous"}},"enrollment":{"type":"InstructorLed"},"locale":{"force":false}}

Till now everything is ok . However I cannot find the created course through  normal web browser.( ie. I have logged to blackboard through the admin account and tried to search for the course but i did not find it) and when i tried to create the same course through  normal web browser I got an error "course with the same id exist".

Can any body help me to know what is the problem. why can't I find the course through normal web browser?