Period and posting adjustments
Period- and posting adjustments are posted from transaction documents, but it is crucial to the general ledger to make the income and costs for a period or dimension as accurate as possible.
Period adjustments is done to distribute the costs or incomes to several accounting periods if an invoice is created for a certain time span.
Posting adjustments is done to distribute costs or incomes to several dimensions (department, project etc). While period adjustments are crucial to make the profit and loss report as accurate as possible, posting adjustments points towards cost accounting.