Hi there,
Your approach to integrating a PO-Number field based on the address validation logic makes sense, especially for B2B transactions.
Regarding whether to bring this to core and starter, I see value in making it a standard feature, particularly if multiple clients have expressed the need for structured customer references in order metadata. If this aligns with broader use cases, we can evaluate incorporating it into the core. Otherwise, keeping it as an optional extension could provide flexibility.
Let’s discuss further to ensure it meets your requirements effectively. Looking forward to your thoughts.
Best,