Welcome to Atlassian community!
Can you please confirm if you are using JIRA Server or Cloud?
A good practice would be to manually create issues in JIRA and Export them to a CSV file (All fields), so you can better understand the format and structure expected by JIRA.
Additionally, refer to the documentation below to know some examples and tips about the CSV file format to import issues in JIRA:
Please, let us know if you have any specific questions about it, Ramesh.
Hello Community! We thoroughly enjoyed this just-for-fun conversation in the Jira Admin Group about what it's like to be a Jira Admin. For #JiraJuly, our talented designers created these graphics t...
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