How long for my existing products on Amazon to link to my e-commerce Platform?

Codisto Channel Cloud messages Amazon via API as soon as linking is done.  Generally Amazon takes a few minutes to register the linking but it can take Amazon longer (up to an hour or more) depending on the Amazon server load.

There could also be an outage with Amazon, Codisto Channel Cloud, or your e-commerce Platform. Wait for an hour to see if the service disruption resolves.