When importing products, is it possible to set two or more categories, in addition to the default category?
You can assign your products to categories. Your input XML file must contain nodes for every category you wish to assign imported product with.
For example:
<products>
<product>
<name>iPhone 14 pro</name>
<categories>
<category>Home</category>
<category>Apple</category>
<category>iPhone</category>
</categories>
</product>
</products>
You can specify how to map categories in Relationships step of import builder