I posted a credit note with an incorrect amount in AP. How do I reverse this entry.
Thanks

You need to use a debit note to correct a credit note.

Using a debit note doesn't actually reverse the credit does it. For example when I use a credit note and apply it to a particular invoice, it reverses the whole thing. When I use a debit note, I don't think there is a way to apply the debit note diectly to the particular credit note, is there?

You can post the Debit Note against the Invoice, not the Credit Note. That will restore the amount of the invoice to the original value.

Thank you. So is there a way to completely reverse the credit note that was posted incorrectly...or am I missing something here?

There is no way to 'reverse' a credit note (nor an invoice for that matter). All you can do is create correcting entry (credit or debit notes) and apply them against the original invoice.

When we want to reverse a CN in AP we create a DN with a reference and description explaining the reason, (i.e. reverse CN#12345 for wrong amount) and do not apply the DN to anything. Then do a manual cheque batch and do a match up by applying the CN to the DN and post at zero.