We are trying to install Payables 8.1C but the password did not work the file we had for the 8.1c

I did contact the sales team and they did provide me Payables 8.1E

I did back up the software by data care this morning

My question is we can just run as update and follow the steps

or there something else I needs to do Please advice

We will doing update of all the module to current version.

We had issue with database which we planing to sort out first before we try to upgrade

Thanks