Twitter Error Could not post Tweet

Question

What could be this Error?

Could not post Tweet. Error: 403 Reason: Status is a duplicate. 

actually this is a edited message . i get error code as 403 and Reason as Status is a duplicate.

Answer 1

Twitter checks messages if they are duplicates of the previous and does not accept them a second time.

So for testing you need to generate new messages (=content) each time.

This is documented somewhere at Twitter, but you can also read about on other sites.