When this issue occurs, we need to differentiate between two cases.
Privately paid expenses
When you have a privately paid expense, i.e., an expense with the payment method Privately paid, and this expense shows the status Ready for export, the expense can be exported as planned and no issues should occur.
Company card expenses
When you have a company card expense with the status Ready for export, i.e., an expense with the payment method Paid with company card, this indicates that the company card expense itself has been fully approved by the Manager and Finance user. However, what often prevents company card expenses with this status from export is the fact that these expenses need to be matched with the corresponding company card transaction first.
Therefore, if you face the issue that your expense with the status Ready for export. cannot be exported, you need to match it with the corresponding transaction. Once you've done that, your expense can be exported.
If you need assistance in matching your company card expense to its corresponding transaction, read this article to find out how it works.