Hi! I am doing a longitudinal study and am trying to prevent previous workers from taking the second part of my survey. In order to do this, I have been following instructions on the MTurk blog [https://blog.mturk.com/tutorial-best-practices-for-managing-workers-in-follow-up-surveys-or-longitudinal-studies-4d0732a7319b] but am still unable to add workers to the qualification I created called "completed my survey already" even when I add all 1's in the column next to each worker ID. When I upload the new CVS file with only the worker ID column, the qualification column, and the update Blockstatus, I keep getting the message that I requested 0 qualification scores. Is there any way I can fix this?
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