How to call a SOAP request in PLSQL

Summary:Hello ,I have created a SOAP request which is working fine when I am using SOAP UI .But how to invoke the same SOAP request through PLSQL ?Can someone pls give some examples.

Thanks,Richa

Content (required):

I have attached the code snippet ,But while executing the anonymous block I am getting below error:

Can someone please provide suggestions.

Error report -

ORA-29273: HTTP request failed

ORA-01031: insufficient privileges

ORA-06512: at "SYS.UTL_HTTP", line 380

ORA-06512: at "SYS.UTL_HTTP", line 1209

ORA-06512: at line 36

Version (include the version you are using, if applicable):

19c

Code Snippet (add any code snippets that support your topic, if applicable):