How do I adjust the date on a Accounts Payable check, if entered incorrectly?

Unfortunately, once a check has been printed and posted to the General Ledger in Keystone, you cannot change the check date. 

However, you do have some options: *Note: these steps must be followed for one check at a time*

Journal Entries ("JE")

Post two journal entries to move the amounts to the correct dates:  

• Using the "bad" date currently posted on the system, create a JE that debits Cash and credits A/P 
• Using the "good" date, create a JE that debits A/P and credits Cash 

Void the Check and Re-enter 

• Void the check, using "Void Check Entry" (AP3401) and "Voided Check Register and Update" (AP3409).
• Release the invoice 

• Enter a manual check with a "0" in front using the existing check number (i.e., 514922). Enter the checks through the manual process (same check numbers with a zero in front of the number) (i.e., 0514922  – reports won’t show the zero) or change the check number on the regular check printing process (but this has to be the only check that is being processed in the run)

• Be sure to use the "good" date on the new check
• Run the "Check Register and Update" process

Bank Reconciliation Adjustments

Finally, if the only issue is that your bank reconciliation is not balancing, you can do the following:

• Clear the check with the "bad" date in the bank reconciliation for the "good" month
• This is OK, and it will show a Bank Reconciliation vs. G/L difference for that month  
• In the following month, you will have the opposite difference, so it will resolve itself