I work with an organisation based in the UK offering English language learning software to a number of developing countries around the world. We're growing rapidly, and need a comprehensive solution to manage our Purchase Order system, invoicing and reporting on both of these. It is envisaged that a system could be created, creating PO exports from a supplier database into an Excel template to fill in with the supplier. These could then be returned and imported when completed, with all costs allocated against a cost centre. Invoices would also be filled into a template, matched against items in the PO and then imported into the database. (Note: Both PO and Invoice templates already exist, and therefore the system needs to be compatible with these. Some change is possible, but not to be relied upon).This should then allow tracking of planned (PO) spend against actual (Invoice) spend. All of this information could then be reviewed and reported on easily. Ideally this would be in a format compatible with both Tableau and Excel. A tableau solution to complete this would be ideal.