Receiving complete ExternalData for a regular/kitchen order
[v8 Two new operations have been added to Api V8: GetOrderAllExternalData and GetKitchenOrderAllExternalData. These operations allow you to obtain all ExternalData for a regular order and a kitchen order, respectively.
The parameter in the operations isPublicOnly determines which list we want to obtain: false - the full list of ExternalData, true - the list of public ExternalData (isPublic = true).