Value Constraints
The constraints of each value in Yahoo! JAPAN Ads API, refer to the linked help page or numerical values listed in the following table.
Entity Limits
| Entity | Search Ads | Display Ads |
|---|---|---|
| Account, Campaign, Ad group | Number of entities | Number of entities |
| Negative Keyword | Number of keywords | -- |
| Ad Display Option | Number of Ad display options | -- |
| Setup Ad Display Option | details | -- |
| Conversion tag | Number of tags | Number of tags |
| Day of Week / Hours Targeting | details | details |
| Site Retargeting | Number of lists | Number of lists |
| Site Retargeting: Setup Target List | details | details |
| Search Keyword Targeting | -- | Number of lists and keywords |
| Placement Targeting | -- | Number of lists and URLs |
| Reporting | Number of filters | Number of filters |
See Yahoo! JAPAN Ads Insertion Rules (guideline) for restrictions on campaigns, ads and images.