I have a custom product catalog database, and I want to migrate it to WordPress. are there any tools for that? or I have to do it manually.
If your custom product catalog is written by you, then you have to do it manually, you can write a script to automate that product if your catalog database is big. Also, there is a plugin to do that you can give a try but this solution is not error-proof, a wrong step will destroy your database. So before proceeding please take a backup of your WP database.