NP can say "No Problem" in chats whenever someone thanks or appreciates. If a friend says, "Thanks for picking up my groceries," you might say, "NP!" The idea is that you were happy to help and that it wasn't a bother for you. NP is a great word to use in the casual nature of conversations, entertaining friends, and family, or a less formal working environment. The resemblance of NP to NFS gives a warm and homey feeling to the reply and thus creates a happy atmosphere during the chat.

Know more: https://radarro.com/np-meaning/