Configurable PO-Invoice Amount Tolerance

Implement a configurable tolerance threshold for Purchase Order (PO) to invoice matching. This feature would allow invoices to be matched to POs even when their amounts differ slightly, up to a maximum variance of 10%. Company Administrators would have the ability to set their preferred tolerance percentage.

When an invoice amount exceeds the configured tolerance:

- Display a validation message explaining the rule violation
- Prevent the invoice from being matched to the PO

Invoices within the configured tolerance range should match to the POs.

This feature will streamline the invoice processing workflow by allowing for minor price variations while maintaining proper controls over larger discrepancies. It reduces the need for manual intervention on small variances while ensuring significant differences are properly reviewed.