SIM card details have been changed, e.g., the default PIN for inactive SIM cards has been changed.
The SIM card data specified in a custom field has been changed, e.g., the "Amazon" value is set in the "Marketplace" custom field.
SIM card status has been changed, e.g., from "In use" to "Disposed".
An account’s ID has changed (Account.id has been updated).
Another product was assigned to the account. An account’s product has changed (Account.i_product has been updated).
An account’s add-on product has been changed.
An add-on product has been removed from an account.
A new add-on product has been added for an account.
The user has topped up ("recharged") their bundle of any service type to get more service volume before bundle renewal.
An account has exceeded its service usage quota (for services of all types except Messaging and Internet access).
A service feature has been enabled/disabled for an account (the Service_Attribute_Values table has been updated).
Custom information (e.g., ID card) has been added or changed for an account (the Custom_Field_Values table has been updated for the account).
An account’s billing status has been changed or affected by the customer’s billing status. A customer’s status has changed (Customers.bill_status has changed).
An account has been blocked (Accounts.blocked set to "Y.").
An account has been unblocked (Accounts.blocked set to "N.").
Bundle is successfully activated for the first time (the bundle has never been activated for this account before).