I'm having a bit trouble. I did a wrong journal entry and I'm doing a reversing entry to get rid of the entry, but I'm not sure of what to put in as the 'debit memo number.'

Select Journal Entry Mode - Daily JE or Adjusting JE. Daily JE Adjusting JE Clear Screen Account Numbers and Titles Debit Close JE Credit Date June 08 101 Cash 9450.00 115 Merchandise Inventory 9450.00 c c Verify Journal Verify Documents Post Ledger Check Number Credit Memo Number Invoice Number CP754 Debit Memo Number Customer or Vendor You Are In Daily Journal Entry Mode