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Ad Group Configuration

INVALID_BILLING_EVENT Invalid Billing Event

Ad Group Targeting Bidding

The `billing_event` you specified (CPC, CPM, OCPM, CPA) isn't compatible with the chosen optimization goal or campaign type.

What causes this error?

The billing_event you specified (CPC, CPM, OCPM, CPA) isn’t compatible with the chosen optimization goal or campaign type.

How to fix it

Match billing events to optimization goals:

  • CPC works with CLICK optimization
  • CPM works with REACH/IMPRESSION optimization
  • OCPM works with CONVERT/INSTALL optimization Refer to TikTok’s compatibility matrix in their API docs.

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