What do you mean by Contact Sentiment?

Contact Sentiment in Vtiger CRM represents the emotional feedback shared by a contact after an interaction, captured through emojis.
When a Contact is added as a participant to an Event and the Event is marked as held, a feedback pop-up appears asking the Contact to select an emoji that best reflects their experience. This selected emoji indicates the Contact’s sentiment, such as positive, neutral, or negative.
The feedback is automatically displayed in both the Event record and the Contact record, enabling teams to quickly understand how the Contact felt about the interaction and take appropriate follow-up actions.