Gather all invoices related to media advertising for the period.

Check each invoice for correct campaign name, dates, and channel.

Ensure the billed rates align with the agreed rate cards or contracts.

Verify the number of ads, airtime, or impressions against campaign plan.

Identify if discounts/penalties were applied for early/late payment.

Scrutinize any additional charges for creative changes, rush orders, etc.

Ensure the applied taxes on the invoice match the local tax rates.

Confirm that payment terms listed on invoice match those negotiated.

Check with records to ensure invoice has not been previously paid.

For any discrepancies, document the issue and the steps taken.

Once reconciled, mark the invoice as approved for payment.

Record the reconciliation details in the campaign financial logs.