The Sales Order and Credit Note pages have been updated to handle both old and new invoices.
New field sets have been added on the Sales Order and Sales Order Line to support the Invoice financial document. They need to be updated with the proper fields. The post-installation script automatically updates fields and default field sets on the Community Site object to use these field sets. If customers have customized their field sets, they will need to update these as well.
New Field Sets for Financial Docs:
Community Site records need to be updated to hold new field set names. The post-installation script does it automatically with the default field sets. If customers have customized their field sets, they will need to update these as well.
LTE__Site__c (Community Site)
Community and Sales Orders, Invoices