Question ! ! !

Is the coin more specific if it has rotation error?
I have couple in my collection and I wanna ask does it change the value..higher or lower.​

There is a difference between a misalignment of the dies and a rotation error whereby a ↑↑ coin is struck by mistake as a ↑↓ coin, and vice versa. Misalignment errors can be by only a few degrees but can also go close to 180⁰, as the upper die keeps on moving around slowly, but without reaching the full 180⁰. This occasionally happens with Canadian coins. Those are worth a premium, more so if they're closer to the 180⁰, but the premium is usually much higher for a true rotation error.

I say "usually" because there are cases which this is not the case. Some Newfoundland coins and Canadian tokens were sent for striking to "subcontractors" who struck the whole run in the wrong way because of their usual practices. This happened occasionally when the London Mint was too busy and sent some contracts over to the Heaton Mint. See for example the comment about PC-5B2 on this page.

If you show pictures it would be easier to tell.

Quote: "VintageCoin"​Is the coin more specific if it has rotation error?
​I have couple in my collection and I wanna ask does it change the value..higher or lower.​

​I think you may want to use another word in place of specific, no?

Quote: "Camerinvs"​There is a difference between a misalignment of the dies and a rotation error whereby a ↑↑ coin is struck by mistake as a ↑↓ coin, and vice versa. Misalignment errors can be by only a few degrees but can also go close to 180⁰, as the upper die keeps on moving around slowly, but without reaching the full 180⁰. This occasionally happens with Canadian coins. Those are worth a premium, more so if they're closer to the 180⁰, but the premium is usually much higher for a true rotation error.
​
​I say "usually" because there are cases which this is not the case. Some Newfoundland coins and Canadian tokens were sent for striking to "subcontractors" who struck the whole run in the wrong way because of their usual practices. This happened occasionally when the London Mint was too busy and sent some contracts over to the Heaton Mint. See for example the comment about PC-5B2 on this page.
​
​If you show pictures it would be easier to tell.

​Thanks alot :)

In Australia this type of error coin is very collectable and adds value to the coin:

'An upset coin will demand a premium over it’s regular counterpart. The degree of upset will also determine how collectable it is'.

See here https://www.australian-coins.com/error-coins/the-upset-or-rotated-die-coin-variety-error/