The provided invoice has already been paid for.

One or more SKUs in the invoice was not found.

The destination in the operation corresponding to this invoice is incorrect.

Invoice_LineItemValidationError is the validation error returned by Invoice_LineItem.Validate if the designated constraints aren't met.

InvoiceErrorValidationError is the validation error returned by InvoiceError.Validate if the designated constraints aren't met.

InvoiceHashValidationError is the validation error returned by InvoiceHash.Validate if the designated constraints aren't met.

InvoiceListValidationError is the validation error returned by InvoiceList.Validate if the designated constraints aren't met.

InvoiceValidationError is the validation error returned by Invoice.Validate if the designated constraints aren't met.

StellarAccountIdValidationError is the validation error returned by StellarAccountId.Validate if the designated constraints aren't met.

TransactionHashValidationError is the validation error returned by TransactionHash.Validate if the designated constraints aren't met.