Does the Nintendo 3Ds System Transfer delete the data on the target system?

I want to do a system transfer, but I have different Nintendo IDs for my two systems and I've downloaded games on each of them.

I have quite a few questions because I'm confused with the info on the internet and on the actual systems during transfer:

Will the data on the target system be deleted?
If not, will the games from the source system be combined with the games on the target system? (Will I be able to play my source-system games, as well as target-system games, on my target system?); and what happens if I have the same game on both?
If the games on the target system will be deleted but re-downloadable, does that mean my saves are gone? Is there anyway to keep the saves of my target-system games?

Thanks! :D

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What happens in a 3DS system transfer?

- The transfer will move your downloaded content, save data, your NNID (if used), friends list, Nintendo eShop balance, and purchase history (including themes). - Any preinstalled software on the new device can be redownloaded from the eShop without the need of an NNID.

Do 3DS games save on the system?

According to Nintendo, all 3DS games are saved to the cartridges they are played on (unless they are games downloaded from the eShop). The only information saved to the 3DS system itself by some games is StreetPass and SpotPass info.

Does formatting a 3DS delete everything?

If you choose to format your 3DS, you will lose all of your data (except for maybe photos and sound recordings), and you will be unable to re-download it for free from the eShop, even if you have it on an SD card.

Can I transfer 3DS data to another 3DS?

Since you are moving data from a 3DS to another 3DS device, select Transfer Between Nintendo 3DS System. On the new system that you want to move the data to (Target System), select Receive from a Nintendo 3DS System. On the system that you are transferring data from (Source System), please select Send from this System.

Maintaining Your Nintendo Equipment: New 3DS XL System Transfer

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

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