An error is reported when creating an asset group under the pmax advertising campaign. I have no problem creating a pmax advertising and asset group in the background interface, but I follow the steps below to create a pmax advertising campaign through the google ads api, but this error occurs. I can’t find the relevant information. solution, the steps are as follows: 1. Create a pmax campaign 2. Create text assets and image assets 3. Create an asset group based on the pmax campaign id (failure) 4. Bind text asset and image asset to asset group (cannot be executed here) Fault: errors { error_code { asset_group_error: NOT_ENOUGH_HEADLINE_ASSET } message: "Headline asset for a valid asset group is not enough." trigger { string_value: "Asset type: headline" } location { field_path_elements { field_name: "operations" index: 0 } } } errors { error_code { asset_group_error: NOT_ENOUGH_LONG_HEADLINE_ASSET } message: "Long headline asset for a valid asset group is not enough." trigger { string_value: "Asset type: long headline" } location { field_path_elements { field_name: "operations" index: 0 } } } errors { error_code { asset_group_error: NOT_ENOUGH_DESCRIPTION_ASSET } message: "Description headline asset for a valid asset group is not enough." trigger { string_value: "Asset type: description" } location { field_path_elements { field_name: "operations" index: 0 } } } errors { error_code { asset_group_error: NOT_ENOUGH_BUSINESS_NAME_ASSET } message: "Business name asset for a valid asset group is not enough." trigger { string_value: "Asset type: business name" } location { field_path_elements { field_name: "operations" index: 0 } } } errors { error_code { asset_group_error: NOT_ENOUGH_MARKETING_IM
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