Hi,

Our company and factory are based in Taiwan. We handle shipping of our products ourselves using Fulfilled by Merchant (FBM) method. Recently, while reviewing the "Promised Delivery vs. Actual Delivery" report in the Manage Seller Fulfilled Products section, we noticed that our delivery times are consistently much shorter than the promised delivery time, as shown in the screenshot below. We have been wanting to adjust our delivery time settings to make them even shorter for quite some time. However, in the shipping settings, we only have one option available, which is "14-28 days." I have gone through the Help section in Seller Central, but I haven't found a solution to this issue.

I am reaching out to the community to ask if anyone has encountered a similar problem or has any suggestions or ideas on how to resolve it. Your input and expertise would be greatly appreciated.

Thank you very much.