I believe, though could be wrong, the way the HW database was set up, is totally different from the way Renderosity's database is set up, so one or both may not use SQL for data transfer, hence the need to do it manually.Manually? This is 2021! I did this type of work on my job in 2001, with scripts in SQL languages to port data from one database to another database. Manually? What a nightmare for them!
That's what database programmers are for. That's what I was/am. Every database has the ability to export in certain formats and the other databases have the ability to import in those formats. Believe me, it's what I did a lot of. I worked with Microsoft databases...Visual FoxPro and MS SQL Server. But I imported data from other databases, sometimes even sent to us in XML format. I sent data extracts to Oracle database. But the database programmer needs to know the structure of the tables on both ends, and be able to have a matching field/column that will have the same piece of data on both sides. In this case, it would be the email address of the customer. The programmer is told which columns they want to import, and he/she would write the code to extract the required data, in the format required at the other end. It's not the only thing I did, by far, but it was a good portion of my work.I believe, though could be wrong, the way the HW database was set up, is totally different from the way Renderosity's database is set up, so one or both may not use SQL for data transfer, hence the need to do it manually.
While we all appreciate their efforts, as someone who's worked my share of IT positions, I can understand the confusion others have about the situation. I get that sometimes the built-in import functions fail or simply don't exists for a particular conversion and requires custom scripting to get it done. As others have mentioned, that requires particular expertise to manage. I'm guessing it's not one their current staff have, as it's not something they'd do often or on such a scale. I'm not sure why they couldn't reach out to the community for help from those with more experience in such things.