MetaData Property Editor
The MetaData property editor allows you to add metadata to your product, this is passed over to the Payment Provider.
The returned type is: Dictionary<string, string>

Programmatically add metadata
Section titled “Programmatically add metadata”You can programmatically add metadata by creating an IEnumerable<UmbCheckoutMetaData>() object
var metaData = new List<UmbCheckoutMetaData>{ new() { Name = "Dictionary Key 1", Value = "Dictionary Value 1" }, new() { Name = "Dictionary Key 2", Value = "Dictionary Value 2" }}