You can add specific accounting codes against the matching Unit type, Insurance and the customer record. This will export in the invoices export formatted for Xero and Sage50.

Edit the unit type you would like to assign a code to. Enter the code in the account code section and hit Update unit type to save the changes.

Edit the insurance level to which you would like to assign a code. Enter the code in the account code section and hit Update cover level to save the changes.

You can add a specific reference code for each customer. Visit the customer page in Stora and select Edit Contact to add this code. (Customer codes can also be imported when importing customers using the import template)