E-commerce platform commission and expense reconciliation

Reconcile Amazon FBA storage fees, referral fees, refund management fees, long-term inventory surcharges, as well as Etsy listing fees, transaction fees, and Offsite Ads fees item by item. Separate various miscellaneous fees deducted by the platform from total revenue and record them as sales expenses or fulfillment costs. Generate a monthly platform cost analysis report to compare the net profit margin of different sales channels, providing accurate profit data for decisions on “whether to expand to new platforms.”