AI-generated Key Takeaways
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          The EntityChildrenLimitReachedError is an error that indicates a limit has been reached for child entities within a parent entity in various Ad Manager services like LineItemService and OrderService. 
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          This error can occur for various reasons, including exceeding limits for line items per order, creative associations per line item, ad units per placement, and custom targeting values per key. 
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          The error includes details like the fieldPathandtriggerto help identify where the limit was reached and the specificreasonfor the error.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202411
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| ApiError(inherited) | |
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| EntityChildrenLimitReachedError | |
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 Enumerations 
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