A general journal page is considered complete when there is insufficient space to record any more entries on that page. This means the page has been filled with journal entries up to its capacity and cannot accommodate additional transaction recordings. Additionally, a general journal page can also be seen as complete when all transactions for the accounting period have been recorded on it, and the page is totaled and ruled.
Thus, a page is complete either by running out of recording space or by finishing the entries for a period and preparing the page for closing or posting. This ensures that all journal entries are properly recorded sequentially and completely before moving to a new page in the journal.