- Respond to the customer inquiries - Identifies customer needs and problems - Assists customers in finding and selecting appropriate products - Provide accurate and complete information to customers - Look for cross-selling opportunities to increase purchase - Building a relationship with customers - Ensure availability of stock and follow up delivery status - Make daily and weekly report

Live Chat - Respond to the customer in a live chat platform - Checking the customer problem - Verification of customer data - Resolve customer problems - Provide accurate and complete information to customers - Communicating with the customer about their experiences with the services - Escalating customer issues to the supervisor

Multi-Layered Approval - Maker - Checking customer problems from email - Verification of customer data - Make changes to data according to customer requests - Submit an approval for the customer request data changes to the approver - Respond to the customer via email if data cannot be changed - Monitoring customer request data changes until approved

- Processing and interpretation of volcano eruption data from lecturers to determine the hypocenter and analyze the Permutation Entropy method to predict the time of the eruption - Make lesson materials to be presented - Presenting lesson materials and teaching practice in class - Monitoring students to practice in class - Correcting and analyzing student reports - Submit reports to lecturers

- Serving customers - Selling bakpia and offering available products - Packing bakpia

Processing volcano eruption data with the b-value method to predict the time of the eruption