405 Method Not Allowed - in postman

I have recently created jira acc and want to create epics and its task through Rest API, but all i am getting is “405Method Not Allowed” this error. I have read alot of documents and watched videos and done the same as they did but i am not getting any solution. Your help would be appreciated.
Thanks in advance.

Hello @AliAhmed

Firstly, the summary field is case sensitive, so it’s summary not Summary

Next, what authentication method are you using; Basic with key+token or OAuth? It looks like you’re not using the correct authentication. Google ‘jira cloud rest api postman examples’ for many examples of putting the authentication in the correct place.