VP-4235: Add PurchaseOrderNumber to model

[asvishnyakov]

https://www.chargebee.com/docs/po-number.html

A Purchase Order (PO) is a document generated by the buyer in order to authorize a purchase transaction. A PO Number uniquely identifies a purchase order and is generally defined by the buyer. The buyer will match the PO number in the invoice to the Purchase Order.

As a B2B user, I want to be able to add the ‘Purchase order’ to the order, so that we can use our internal Ref numbers for managing the orders

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
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100.0% Coverage
0.0% Duplication

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