Hi Heather,
The message is occuring because the count of orders, or invoices or credit notes, does not match an internal count of the document type used for display on the grid. In the older days, a typical reason for this was that orders were created and posted in ACCPAC Plus. But if ACCPAC Plus OE is no longer used, then some other problem is happening so that when orders are posted or deleted or otherwise created, the grid count isn't being properly updated.
As mentioned before, the version you are running makes a difference. The current 81C release will give a more appropriate message and also deal with the grid count in DIC.
Why is this happening in the first place? It's not exact to pinpoint, but one typical cause is that one user's workstation doesn't correctly release a file and then a second user posts an order, thereby counts get out of synch.
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Regards,
Softrak Tech Support