When product SKUs are imported with special characters, Inventory Ahead/marketplace may not be able to read them, causing them not to appear on the website.

Here is the link to the tool that will remove special characters from your SKUs before importing them.

 https://www.soscisurvey.de/tools/view-chars.php

Below is a tutorial showing how to utilize the tool. Dots between words are not considered special characters.

View non-printable unicode characters – Google Chrome – 2 February 2023