にかわり
Meanings
1
Used when one thing or person takes the place of another. Often follows a noun or noun phrase.
Due to urgent business, he will attend instead of me.
The new version of this document will be used, replacing the old one.
2
Used when acting for someone else, often in formal or business contexts. Similar to の代わりに but with a slightly more formal tone.
On behalf of the president, the vice president will give the greeting.