To enable Dynamic Product Catalog (DPA), you can either use a third party feed manager, your own custom CSV, or rely on the default catalog generated through your pixel (Infer method).
To Edit your Catalog Type
Navigate to the Catalog section and click Select Catalog.
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Enter a Catalog Name and click Continue to proceed.
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Choose your preferred integration method: you can upload via CSV (this includes through 3rd party feed providers) or use the pixel inferred catalog option.
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If the setup is successful and no errors occur, your catalog will begin syncing. Sync typically completes within 24 hours.
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Once the catalog is successfully created and synced, return to your campaign setup, click the edit icon next to the campaign name, and toggle ON the DPA feature under the Objective section. This will enable dynamic product catalog using your synced product catalog