In the Source configuration tab, you can find the settings that let you define which Jira issues can be synchronized by the recipe. These issues will be considered as the source of the synchronization, and will be synchronized with the issues defined in the Target tab according to the rule defined in the Triggers tab.

Source issues

Only issues which satisfy the criteria in this section can be synchronized by your recipe.
In other words, if an issue does not satisfy all these criterias, the recipe will not synchronize this issue.

Project

Use this setting to restrict the projects from which the recipe can synchronize issues. 
If you select one or more projects, the recipe can only synchronize issues belonging to one of these projects. If you leave the field empty, the recipe can synchronize issues from all projects on your Jira instance.

Issue type

Use this setting to restrict the types of issues that the recipe can synchronize.
If you select one or more issue types, the recipe can only synchronize issues from one of these types. If you leave the field empty, the recipe can synchronize issues from all types.

Additional filter

Use this field to write a JQL filter. The recipe can only synchronize issues which satisfy the filter, in addition to all the other criteria defined in this section. 

Configuration tester

The configuration tester can be used to check the filters set up in the "Source issues" section.

Clicking on the Run test button will trigger a Jira search which returns the exact list of issues where the recipe will be available. With this tool, you can quickly check if the set up in this tab has been properly done.