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Number of character to start search : The number of taped characters to input before autocomplete started.
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Step 3: Retrieve more data
Childs Children will help you to retrieve more data into issues. It's pretty simple to work with childs. You must know that there are To work with Children, no special customfield to create required, you can use JIRA customfield as Text, Date, number, etc.
For our In the below example, the need requirement has been modified . So now, we need to select id; and depending on this id we , the plugin will retrieve the name of the city :
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