Within the Ajax Connector's Event menu, you'll find four primary operations:
Callback Update: This operation allows for visual adjustments to the values of widgets connected to a specific meta field ID without affecting the backend data.
Update Meta Field: It directly alters the value in the targeted backend meta field based on specified parameters. Moreover, it can update widgets linked to those fields using the Callback Settings.
Increment: Handy for adding numeric values to a meta field, often used for creating counters or similar functions.
Decrement: The Decrement operation subtracts a specified numeric value from the targeted meta field, offering flexibility in managing numeric data.