NOTE: A copy of the source document is also sent as an attachment. For expenses, for example, this is a PDF copy of the expense report including the images of the receipts etc.
If the source file is more than 2.5MB, you can't attach it to the published transaction and import it into Sage Accounting.
When this happens, the transaction is still created, but a warning is shown in AutoEntry to let you know that the file wasn't included.
Find this on the Archived list for the relevant area.
You can still download the file from AutoEntry if required.