Short answer: Most Meta advertisers should start with Highest volume, which spends your budget to get as many results as possible. Once you know your numbers, Cost per result goal helps keep the average cost near a target, ROAS goal keeps return near a target for value optimised campaigns, and Bid cap sets a hard limit on each auction bid. Controls can protect efficiency, but set them too tight and your ads stop spending.
The four bid strategies
| Strategy | What it does | Best for |
|---|---|---|
| Highest volume | Spends the full budget for the most results | New campaigns, learning, scaling |
| Cost per result goal | Aims to keep the average cost near your target | Stable accounts with known CPA |
| ROAS goal | Aims to keep return on ad spend near your target | Stores with purchase values tracked |
| Bid cap | Limits the maximum bid in each auction | Advanced users who manage bids closely |
Older names you may still see: cost cap for cost per result goal, and minimum ROAS for ROAS goal.
Highest volume
This is the default. Meta tries to spend your budget and get the most results. Costs can rise when you raise the budget, because Meta goes after more expensive results to spend it. It is the best choice while you are still learning what a normal cost per result looks like.
Cost per result goal
You tell Meta your target cost, for example a cost per purchase of 25 dollars. Meta tries to keep the average near that number. Tips:
- Set the goal close to your real recent average, not a wish.
- Expect less spend if the goal is low.
- Give it several days before judging.
ROAS goal
For campaigns optimised for purchase value, you can set a target return. Meta tries to keep the return at or above it. It needs accurate purchase values from your pixel and Conversions API. If you set it too high, delivery can drop to almost nothing.
Bid cap
Bid cap limits each bid. It gives the most control and the most risk. It suits experienced advertisers who know their margins and test many caps. Most small businesses do not need it.
How to choose
- Start with Highest volume until you have a few weeks of stable data.
- If costs swing too much when scaling, test Cost per result goal in a duplicate campaign.
- For stores with good value tracking, test ROAS goal.
- Keep one control campaign on Highest volume to compare.
Frequently asked questions
What is the best bid strategy for Facebook ads?
What happened to cost cap?
Why is my campaign not spending with a cost goal?
Does ROAS goal need purchase values?
Should I use bid cap?
Who can choose the right bid strategy for my account?
Want help with bidding?
I can test bid strategies safely against a control. See my Meta Ads management service or request a free ads audit. Also read How to Scale Meta Ads Without Killing ROAS and Advantage campaign budget vs ad set budget.