During the process of creating a new issue in Jira Software, you can link it to existing issues within the project.
Access the issue creation screen by clicking on the “Create” button in Jira Software.
Choose the appropriate issue type for the new task, such as story, bug, or task.
Look for the “Link” field or option provided in the issue creation screen.

Select the relevant link type that represents the relationship between the new issue and the existing issues.
Search for the existing issues you want to link to by typing their keys or titles in the search field.
Once you find the desired existing issue, proceed to link it with the newly created issue.
After completing the necessary details for the new issue, click on the “Create” button to finalize the issue creation process.
The new issue is now successfully linked to the chosen existing issues, establishing connections between related tasks within the project.