This alert will check overage/underage on the invoices in the last week (therefore this alert should be run weekly so that your team can react quickly to any significant underage/overage on the last invoice). If you don't want to check underage put 999 in VariableW. If you don't want to check overage put 999 in VariableX. Use VariableY if you don't want to see invoices that billed 0 copies (base invoices).
Alert ID256 is an alert for last 3 months over previous 3 months volume trending on invoiced clicks. But it requires that a contract have at least 2 quarters of billing to work.
VariableW: % for overage exceeds base by, whole number please, defaults to 30 or enter 999 to not alert on overage exceeds
VariableX: % for underage exceeds base by, whole number please, defaults to 30 or enter 999 to not alert on underage exceeds
VariableY: enter 1 or 0 - '1' means report invoices where counted copies =>1, '0' means report all items
Sample of alert ID321: