You can save your journals as draft.
If you are working with a long journal entry and have to interrupt your work for some reason before you are finished and do not want the journal to affect your accounting, simply click Save instead of Post in the footer of the journal.
When you click Save, a notification informs you that the journal has been saved under Drafts.
This enables you to return at a later date and pick up where you left off without worrying about losing anything or making mistakes. You find your journal in its own list: Journal type - Draft.