Why does the system not warn you when capturing and exceeding the credit limit?
Based on the available data, it appears that credit limit is applied to customers and when the order exceeds the credit limit, the user should be notified.
However, since this issue is somehow only on local, the official user guide should be accessed to find more about it.
Here is the link to the PDF: https://support.navigatorsoftware.co.nz/sites/default/files/articles/attachments/Accounting%20User%20Guide.pdf