From Postman it is unable to call scripted REST API due to auth issue

[KausikSharma]

Hi all, 

I have create a demo Scripted REST api named as Demo, I can able to access the SNOW instance(consider user id:"AUSXX") and can able to develop the Scripted REST but with the same user id password I m not able access the api from any external tool like postman. can you tell me what would be the reason?

[Prince Arora]

@KausikSharma 

The username & password which you have provided there, are you able to login to the ServiceNow instance by manually entering the creds?

[KausikSharma]

@Prince Arora 
yes,,and admin role is attached with the id.

[Prince Arora]

@KausikSharma 

Have you created this user manually or it has been created from some integration like (AD integration/workday) if So? please create a user manually and try again

[KausikSharma]

It is manually created with 'admin' role