Percentage Change Alerts for Amazon Ads Performance
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Quick answer
Percentage change alerts are automated notifications that compare a current Amazon Ads metric to a previous period and flag increases or decreases expressed as a relative value. For example, an alert might trigger when ROAS falls by 15% or daily ad spend rises by 20%. This approach normalizes performance shifts across campaigns of different sizes, so a smaller account receives the same attention as a larger one when the relative movement is meaningful.
Percentage-based monitoring sits alongside absolute thresholds, but it answers a different question. An absolute rule asks how far a metric has moved from a fixed target. A percentage rule asks how large the shift is compared with where performance was before. Understanding that difference can make campaign alerts feel less noisy and more useful.
How Percentage Change Alerts Work
Percentage change alerts track movement between two periods, usually the current day, week, or month versus the same window immediately before it. Instead of waiting for spend to pass a set dollar figure, the alert fires when spend jumps by a certain share. That makes the same rule portable across campaigns, ad groups, and marketplaces.
Common metrics tied to percentage alerts include ad spend, sales, ROAS, clicks, and wasted spend. When these values move outside an expected range, the alert highlights the campaign or search term that changed. The Amazon Ads Dashboard by Todoza is designed to expose those comparisons in one reporting view, allowing a manager to see current performance against earlier periods before deciding what to act on.
Where Percentage Alerts Beat Absolute Thresholds
Absolute thresholds are straightforward: alert me if spend exceeds $100, or if ACOS goes above 35%. Percentage alerts add a different layer. A keyword moving from $5 to $12 per day might still be under a $20 absolute cap, but a 140% increase in spend could be a much earlier signal that something changed.
- They catch early momentum shifts before fixed caps are reached.
- They help compare low-spend and high-spend campaigns fairly.
- They highlight subtle but steady declines in ROAS that flat thresholds might ignore.
When Percentage Alerts Matter Most
Percentage alerts are most useful when you manage accounts of different sizes, or when a metric is trending in a harmful direction long before it hits a hard limit. A small daily budget can double quickly on a competitive search term, and that relative spike may be invisible to a fixed-dollar alert.
For managing what those alerts surface, a tool like Amazon Negative Keyword Tool by Todoza can rank underperforming search terms based on campaign-specific data. That keeps the response focused on cleanup, rather than reacting to every alert. Since the tool is read-only, it does not change campaigns without your team’s approval.
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Percentage alerts are only one side of the alerting picture. Paired with absolute thresholds, they give an Amazon Ads manager a more complete view of when performance is drifting, which is the same comparison at the heart of broader Amazon Ads performance alert strategy.