whats the most commonly understood signs/icons for chat receipts
i'm designing an in-app chat feature where users get can live support from chat agents
my question is whats the most commonly understood signs/icons for chat receipts like
- sending
- sent
- not sent
- delivered
- not delivered
- read
i see whatsapp uses ticks and double ticks changing the colour when read, while facebook messenger users something slightly different. what would be more common practices to follow when designing for this without overcomplicating things, are all these receipts needed?