When opening SAP you may receive the message 'Index is out of date'. This issue can occur if if some of the files have been corrupted. You can find out how to resolve this issue in the following article >
Practice Products
Welcome to the Sage Practice Products Support Group on Community Hub! Available 24/7, the forums are a great place to ask and answer product questions, as well as share tips and tricks with Sage peers, partners, and pros.
Sage Accounts Production Announcements
'Index out of date' message on opening Sage Accounts Production