campaign_update

Advertiser ID.

Campaign budget. The new budget must be at least 105% of the current spend. To determine current spend, use the Basic data metric `spend` from the synchronous report or asynchronous report API.

Campaign ID.

Campaign name. Maximum length is 512 characters. Emoji is not supported. Each Chinese or Japanese character counts as two characters; each English letter counts as one character.

PO (purchase order) number used for invoice tracking and reconciliation.

Special ad categories for the campaign. Setting this field means the campaign promotes housing, employment, or credit opportunities and must comply with TikTok's special ad category policy; ad group targeting options in the campaign will be restricted accordingly. Enum values: `HOUSING` (real estate listings, homeowners insurance, mortgage loans, or similar opportunities), `EMPLOYMENT` (job offers, internships, professional certification programs, or similar opportunities), `CREDIT` (credit card offers, auto loans, long-term financing, or similar opportunities). Important update rule: if special ad categories are already selected for a campaign, you can remove them, but you cannot change them; if special ad categories are currently disabled, you cannot enable them for an existing campaign. For Shopping Ads, use of special ad categories with campaign product source as Catalog and with non-Catalog campaign product source are separate allowlist-only features. This field is generally available to advertisers registered in America or Canada; advertisers not registered in America or Canada who want to target these countries with special ad categories must apply for an additional allowlist.