| Item | Keys limit | Values limit |
|---|---|---|
| Reportable key-values |
200 You may only have 200 keys. |
30,000 Calculated by adding the values of all keys to each other. For example:
|
| Custom dimensions |
10 You may only have 10 total custom dimensions defined. Make sure you plan your custom dimensions carefully. |
20,000 (Google Ad Manager 360) 5,000 (Google Ad Manager) Calculated by multiplying the number of values in each custom dimension key. For example:
|
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You'll receive an error message when over the keys or values limits for both key values and custom dimensions. Until you fall below the limit, you'll be unable to:
- Add new reportable keys / custom dimensions
- Add values in existing reportable keys / custom dimensions
- Add dynamic values in targeting when creating a line item
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Deleting key values or custom dimensions at a later date might affect your network negatively, for example, loss of targeting signals or go-forward reporting.
Remove keys from reporting to get under the limit
If you're over either the "Reportable key-values" or “Custom dimensions” limit, the easiest way to get under the limit is to remove keys from reporting. Removing a key-value as reportable or a custom dimension will remove the key and all values from both the key limit and all values from the values limit.
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In Ad Manager, click Inventory, and then Key-values.
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Select the check boxes next to the keys you want to remove. Keys that are currently in reporting have a value of "On" or "Custom dimension" in the "Reportable" column.
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Click Exclude from reporting.
Any values included in reports before you remove a key will remain in historical reports for the time they were active. If you remove a key and later re-activate it, values are omitted from reports for the time the key was deactivated.
If you deactivate a targeting key, it is also removed from reporting.
