Purchase credit memos

when i was creating a puschase credit memo for 2010 i forgot to change the date and now it affects the VAT for 2011.

how can i correct it? i already posted it.

I would use the copy document function to create a purchase invoice to match the incorrect purchase credit memo. Make a note against each document to say that they were created in error (the VAT will then have 2 entries, but will net to zero).

then create the correct entry as you intended to in the first place

Thank you i will try to do that!