These instructions about "classes" are only for the QBO Plus plan.    We have the Essentials plan.    No “classes” function.   Only “tags”.   And again, tags only work for an entire transaction.   Cannot tag each line item separately.  That is the feature we want, along with many other customers in this thread.  We don't want to upgrade to Plus in order to add "classes" and then have a confusing mix of "classes" and "tags".   That is NOT a solution.   Please just expand the functionality of "tags" for all customers, including us on the Essentials plan.