Search engine optimisation is relevant for most web shops – but not all. Therefore clarify whether SEO applies to your situation. If your web shop has undergone thorough SEO with the source language, maybe SEO should also be implemented with the new languages? If the markets require it, that is. However, it is not always as simple as “translate first and implement SEO afterwards”, which we sometimes hear people say.
In some cases, the results can be satisfactory using this reverse order. But you may also be forced to more or less start all over again in order to get the optimal search engine optimisation for the target languages.