Getting an "INVALID_CREDENTIALS" trying to get a service ticket

• Can login to  APIC-EM system, with the default username (admin) and pwd (secrete) Via POSTMAN, now want to get the ticket in order to fill in the x-auth-token header.
• here's the REST API I am trying to do:
• POST - url: https://sandboxapic.cisco.com:9443/api/v1/ticket
•  Body:
• {"username": "admin" , "password": "secrete"}
•  return error:
• {"response":{"errorCode":"INVALID_CREDENTIALS","message":"Please provide valid credentials","detail":"Authentication Failed"},"version":"1.0"}
•  Any idea what is missing here.

Please check Sandbox APIC-EM always on Lab.

https://devnetsandbox.cisco.com/RM/Diagram/Index/2e0f9525-5f46-4f46-973e-0f0c1bf934fa?diagramType=Topology

to get the right password.

 They are all real APIC-EM servers, just DB only lab the inventory is getting from DB (which is a snapshot of real devices).

It depends on what would you like to test. The DB only lab already can be used for a lot of things(like REST API application test) but if you need to use "live" devices then you use the reservation lab which everything is live.

url = "https://devnetapi.cisco.com/sandbox/apic_em/api/v1/ticket"

payload = {"username":"devnetuser","password":"Cisco123!"}