The main obstacle is Kim's current salary, which is a double-digit million euros per year in Munich.

This is a significant amount, and both Italian teams are hesitant to match it.

As a result, Kim would need to take a pay cut in order for a move to Serie A to be possible.

Additionally, Bayern Munich has a condition that must be met before they will approve the transfer: the team must find a suitable replacement for Kim before allowing him to leave.