---
updatedAt: 2026-04-12T09:22:35.000Z
---

# Campaigns

## Campaign API limitations

* A maximum of 50 campaigns can be created/updated in a single POST/PUT batch request
* A maximum of 50 campaigns can be deleted in a single PUT batch request
* Limit on length of campaign name is 255 characters
* There is no limit on number of ad groups to be created within a campaign
* There is no limit on number of campaigns to be created for an advertiser
* There is no limit on the amount of daily budget that can carry forward to the next day
* If the daily budget is defined, unspent budget from present day will be carried forward to the next day. Maximum budget spent on a given day will be limited to twice of the set dailyBudget amount
* Campaigns go live at PST midnight of the scheduled start date
* Maximum number of campaigns that an advertiser can create per advertiser account is 5000