How to undo the spam marked msgs in facebook?

[Vikram]

I accidently marked my facebook friend conversations as a spam now how to undo it i dont know!Plz help me out....

[Shirley]

Step 1
Log in to Facebook and view the person's profile that contains the post you previously marked as spam.

Step 2
Hold your mouse over the post and click the downward-pointing arrow that appears at the corner of the post.

Step 3
Click "Report/Mark as Spam." A message reading "You have already marked this" pops up.

Step 4
Click "Undo" to unmark the entry as spam.

[Mathew]

Then go to the right to "actions" and in that dropdown menu, you can "unspam" the selected messages