Electronic device, and method and storage medium

A method comprising:

• receiving a purchase instruction from a user;
• transmitting the received purchase instruction to a server via a network;
• managing a purchase history of the user;
• and
• determining, upon receiving the purchase instruction from the user, whether the received purchase instruction satisfies a first condition based on a purchase history of a first period, and sending a message to the user when the purchase instruction satisfies the first condition.

A non-transitory computer-readable storage medium having stored thereon a computer program which is executable by a computer, the computer program comprising instructions capable of causing the computer to execute functions of:

• receiving a purchase instruction from a user;
• transmitting the received purchase instruction to a server via a network;
• managing a purchase history of the user;
• and
• determining, upon receiving the purchase instruction from the user, whether the received purchase instruction satisfies a first condition based on the purchase history of a first period, and sending a message to the user when the purchase instruction satisfies the first condition.