AI-generated Key Takeaways
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          This is a request message for the CustomInterestService.MutateCustomInterestsservice.
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          It requires a customer_idto specify the customer whose custom interests are being modified.
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          It includes an array of operationsto perform on individual custom interests.
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          Setting validate_onlyto true validates the request without executing it.
Request message for CustomInterestService.MutateCustomInterests.
| Fields | |
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 Required. The ID of the customer whose custom interests are being modified. | 
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 | Required. The list of operations to perform on individual custom interests. | 
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 If true, the request is validated but not executed. Only errors are returned, not results. |