Added new error codes and extended existing error information

We have introduced new error codes that should help you analyzing the root cause of 'Bad Request' type errors by giving more specific error messages.

• MatchingPriceNotFound for Orders and Carts
• MissingTaxRateForCountry for Orders, Carts and Customers
• DuplicateFieldWithConflictingResource for Zones
• DuplicateField for TaxCategories

We have enriched an existing error code with additional information to be more specific on the error cause.

• DiscountCodeNonApplicable for Orders and Carts

We have added the error code that can occur when removing enum values from an attribute definitions that are still in use by products.

• [API] Added the EnumValueIsUsed error code.