The combination of thing type and thing ID is invalid

Hi All,

While executing the Python file to send CPU usage data in am getting return code 202.
When I tried to check the data via API by given URL in tutorial(changed the thing ID)I got an error :
"message":"The combination of thing type and thing ID is invalid.","messageId":"appiot.invalidThingTTComb","correlationId":"92ca25ef-99f1-44a0-7234-d6445f8f59f2","causes":[]

I am a beginner in IoT, please help.

Thanks,
Amit