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The jiraapitoken needs to be created. This is not the password you log in to Jira with. To create a Jira API token do the following:
Log in to your Atlassian account https://id.atlassian.com/manage/api-tokens.
Click Create API token.
From the dialog that appears, enter a memorable and concise.
Label for your token and click Create.Click Copy to clipboard, then paste the token to the jiraapitoken credential field.