Cause
1. If the Records (+/-) cost centers according to the category box (via File → File and accounting properties → Options) is ticked, you don't need to add it in the cost center as the program already takes it into account. This function is only active for Income & Expenses accounting and Cash Manager.
2. In the Integrated invoicing with Income/Expense accounting, with a customer ledger set up with profit centres, the option Register (+/-) cost centres as category must not be activated, because the account and category are not stated when the invoice is issued.
Solutions
- Do not use the minus sign in front of the cost centre.
- When only the amount and the cost/profit centre are recorded, without entering the account and category, the option should not be activated.