The new Amazon UK Multi-Channel Fulfillment (MCF) rate changes include an average increase of 5.6% in MCF fees. The rate change depends on the shipping speed, item size, and the number of units being sent. Additionally, Amazon has introduced six new small-parcel-size bands and an extra-large envelope-size band, which are designed to align fees more closely with the product's actual weight and size. However, the price for standard shipping envelopes under 460g remains unchanged.

Businesses may need to adjust their strategy in response to Amazon's UK MCF fee update by considering the following actions:

• Reviewing the new fee structure: Understand how the changes impact your specific products and shipping preferences.
• Tweaking product prices: Adjust pricing to account for the increased fulfillment costs.
• Offering bulk deals: Encourage larger purchases to potentially offset higher per-unit shipping costs.
• Evaluating fulfillment options: Consider whether other fulfillment methods may now be more cost-effective.

It's important for businesses to dive into the details of the fee changes and see how they can best adapt their fulfillment strategy.

The text does not specify an exact date for when the Amazon UK Multi-Channel Fulfillment (MCF) fee changes will take effect. It is implied that the changes are either currently in place or imminent. Sellers should check the official Amazon announcements or their MCF account details for the specific effective date.