This feature is exclusive to Sage 50 Accounts.

Users can now post transactions in Sage 50 Accounts whilst another user is working with VAT Return with some exceptions:

• If Calculate has been clicked on a VAT Return then transactions dated before the end date of that VAT Return period cannot be entered until that VAT Return has been finalised. The user posting the transaction will see a message like this:
  
   
  
  
• If the VAT Cash Accounting scheme is in use, and a payment on account is posted before the end date of the VAT Return, then the transaction will post as normal but the user calculating the VAT Return will receive a message to advise that new postings have been made. They should therefore recalculate the VAT Return.
• Transactions posted by third party software will post into the VAT Return period, but the VAT Return user will be advised of these new postings and that they should recalculate the VAT Return.