We would like to import the CategoryCategoryRealation from an external source which also provides the ordering of the subcategories within the parent by use of an integer sortcode.
We want to import this sort code into the relations "sequencenumber" field. However, our limitation is that we cannot import it as impex and have to do it in service layer.
Does someone know how to do it? (In Jalo layer one could create links using LinkManager.createLink..)