使用LinkedIn新版Marketing API发布企业主页帖子遇DSC默认启用问题

问题场景 #

使用LinkedIn新版Marketing API发布企业主页帖子，遵循官方示例编写请求后，收到如下400错误：

{"errorDetailType":"com.linkedin.common.error.BadRequest","code":"MISSING_REQUIRED_FIELD_FOR_DSC","message":"Field /adContext/dscAdAccount is required when the post is a Direct Sponsored Content, but missing in the request","errorDetails":{"inputErrors":[{"description":"Field /adContext/dscAdAccount is required when the post is a Direct Sponsored Content, but missing in the request","input":{"inputPath":{"fieldPath":"/adContext/dscAdAccount"}},"code":"MISSING_REQUIRED_FIELD_FOR_DSC"}]},"status":400}

用户明确不想使用Direct Sponsored Content（DSC），但isDsc为只读字段无法手动禁用。

问题根源 #

请求中distribution.feedDistribution被设置为"NONE"，这一配置会被LinkedIn判定为DSC帖子，触发必须提供DSC广告账户的校验逻辑。

修复方案 #

将distribution.feedDistribution修改为"MAIN_FEED"（普通企业主页帖子的默认分发渠道），即可避免被识别为DSC帖子，无需额外提供DSC相关字段。

修改后的代码示例

content = "x"
headers = {
    "Authorization": f"Bearer {self.access_token}",
    "X-Restli-Protocol-Version": "2.0.0",
    "LinkedIn-Version": "202207",
    "Content-Type": "application/json",
}
author = f"urn:li:organization:{self.page_id}"
data = {
    "author": author,
    "commentary": content,
    "visibility": "PUBLIC",
    "distribution": {
        "feedDistribution": "MAIN_FEED",  # 关键修改：替换为MAIN_FEED
        "targetEntities": [],
        "thirdPartyDistributionChannels": []
    },
    "lifecycleState": "PUBLISHED",
    "isReshareDisabledByAuthor": False,
}
response = requests.post("https://api.linkedin.com/rest/posts", headers=headers, json=data)
return response

简化版（无需特殊分发配置时）

如果不需要自定义分发规则，可直接省略distribution字段，LinkedIn会自动使用默认的MAIN_FEED配置：

content = "x"
headers = {
    "Authorization": f"Bearer {self.access_token}",
    "X-Restli-Protocol-Version": "2.0.0",
    "LinkedIn-Version": "202207",
    "Content-Type": "application/json",
}
author = f"urn:li:organization:{self.page_id}"
data = {
    "author": author,
    "commentary": content,
    "visibility": "PUBLIC",
    "lifecycleState": "PUBLISHED",
    "isReshareDisabledByAuthor": False,
}
response = requests.post("https://api.linkedin.com/rest/posts", headers=headers, json=data)
return response

说明 #

设置feedDistribution为"MAIN_FEED"后，帖子会正常发布到企业主页的主信息流中，完全符合普通非DSC帖子的发布需求，不会触发DSC相关的校验逻辑。

内容的提问来源于stack exchange，提问作者jackaaxc