How to handle duplicate question from another server?
13649
What to do with cross-site duplicates?
38992
Is the duplicate answer flags raised for exact copies of answers of different users?
10353
Duplicate flag lists "you have already raised this flag" after flagging as "Unclear what you're asking"
78376
Flag Answer, duplicate
9251
Do you delete your own answer when it's a duplicate?
36484
Handling answers that build heavily on (or are copied outright from) existing answers
112391
How should one respond to "duplicate answer" flags?
18551
Duplicate questions in feed, and questions incorrectly marked as unanswered
137083
Is it OK to copy parts of an answer from one SE site to an answer on another SE site?
131258
Dealing with bundle/omnibus/list-of-questions question that consists of rather distinct questions
19629
Where is it preferred to place the answer to duplicate questions?
138642
Should the "closed as duplicate" message be altered?
117258
Is it ok to to delete and repost a duplicate question?
126330
Wrong wording of close message when question is closed as duplicate of more than one
7406
When merging questions, leave the duplicate one as a placeholder
32251
Search for "similar questions" across multiple sites?
143078
Is there a way to migrate a question to a SE site not on the "belongs on" list?