Jira is not recognising my upload from CSV

I think if you can create a sample issue (like you need to be upload) in jira then you can export(Export all fields) that created issue and analyse the output excel file. then you can understand the input format that jira required form your CSV file.

UPDATED

the other thing you can do is read the JIRA log file it will tell you the actual error occurred some times.

are you export your created issue with this option?..see screenshot below..

The approach will depend on the field types you are using.

For example, if you were loading a simple text field then the text in the CSV file will just be inserted in to the text field.

If, however, you are populating a custom field that is represented by a radio button or a drop-down listbox then you will need to use the field mapping option that is offered during the CSV import.

Say you had a radio button that said either 'true' or 'false'. You would tick the mapping option for this field during the CSV import and configure it to map true -> true and false -> false. You can also do this mapping in the CSV file itself.

You can see more details on this link:

Atlassian - Importing Data from CSV