After bulk uploading new keywords to Baidu, you may see the following error message in the activity log:
This error message may appear due to one of the following reasons.
Please see our Support Center article for more details on Baidu's Approach To Duplicate Keywords In A Group.
If the keywords already exist in Baidu, simply perform a manual sync. See our Support Center article for more information on Performing a Manual Sync.
If your keywords do not conform to Baidu's policy regarding duplicate keywords, as outlined above, then the keyword will need to be changed to fit the Baidu rules.