# Appendix

- [Fulfillment and cancellation flow](/salesforce-b2b/2.1.1-2/appendix/fulfillment-and-cancellation-flow.md): This page contains additional helpful information about Fulfillments.
- [Issuing refunds](/salesforce-b2b/2.1.1-2/appendix/issuing-refunds.md): Learn how to issue refunds through the Salesforce B2B Commerce App.
- [Managing regulatory fees](/salesforce-b2b/2.1.1-2/appendix/managing-regulatory-fees.md): Learn how to manage regulatory fees.
- [Managing subscriptions](/salesforce-b2b/2.1.1-2/appendix/managing-subscriptions.md): Understand how the Salesforce B2B Commerce App supports the processing of recurring installment payments.
- [Salesforce B2B Commerce App logs](/salesforce-b2b/2.1.1-2/appendix/salesforce-b2b-commerce-app-logs.md): Learn how to work with the Salesforce B2B Commerce App logs.
- [Uploading tax certificates (US TEMS)](/salesforce-b2b/2.1.1-2/appendix/uploading-tax-certificates-us-tems.md): Understand how customers upload tax certificates.
- [Global tax identifiers](/salesforce-b2b/2.1.1-2/appendix/global-tax-identifiers.md): Understand how tax identifiers are used.
- [VAT invoices](/salesforce-b2b/2.1.1-2/appendix/vat-invoices.md): Understand how VAT invoices are viewed and downloaded.