ERROR: 'The scale charges for this month has already been posted'

We've resolved this error when in the Scale Charges wizard in Sage 50 Accounts.

In the Scale Charges wizard the following message may appear even if you haven't ran it for that period:

'The scale charges for this month has already been posted. Are you sure you wish to continue?'.

 NOTE:  We've resolved this issue in v33.0 and above of Sage 50 Accounts. If you aren't using the latest version, upgrade now.

If you're unable to upgrade, as a workaround, click Yes to continue and post the charges.