A customer purchases a product and we ship it. They then see a price lower and would like us to price match.
Solution 1. We can do a credit memo with an adjustment refund for the difference.
Issue: Magento does not account for the decrease in actual sales and taxes associated with the lower price.
Solution 2: We can do a refund on the item (not return to stock) and charge an adjustment fee to make the price lower. Issue: While the Grand total (excluding tax is correct) Magento refunds the total tax amount making the Grand total (including tax) wrong.
Am I approaching this work flow wrong? Is there an easy way to do this (for both me and my customers) that will calculate/report tax correctly?