Please refer link below for more information: https://salesforce.stackexchange.com/questions/13809/mass-update-knowledge-articles-with-data-categories https://help.salesforce.com/articleView?id=000233637&type=1
I hope you find the above solution helpful. If it does, please mark as Best Answer to help others too. Thanks. Deepali Kulshrestha
Please refer link below for more information:
https://salesforce.stackexchange.com/questions/13809/mass-update-knowledge-articles-with-data-categories
https://help.salesforce.com/articleView?id=000233637&type=1
I hope you find the above solution helpful. If it does, please mark as Best Answer to help others too.
Thanks.
Deepali Kulshrestha