If you change your postage rate on Amazon, RepricerExpress will need to receive a price change notification message to be aware that a change has taken place and reprice your products.
As Amazon does not inform us of a change in your postage/shipping, we need to wait for a competitor price change to occur to reprice your product.
To help go around this limitation on Amazon's end, RepricerExpress will force your listings to reprice at least once a day so that will be the most you’ll have to wait for your new postage to be taken into account. On accounts with less than 5,000 SKUs, we will force your listings to reprice every 3 hours if a price has not changed.
For eBay, if you change your postage this one will be automatically updated after a couple of hours.
If you need to force your listings to update faster you can either change your price on Amazon or contact us via email.