Pre-flight error for Shipping Carton

Hello,

Is carton id supposed to be auto generated or we can send this ID from Warehouse or Vendors to stores through mnt files?. If this ID can be sent from Warehouse or Vendors, then why this needs to be auto generated at Xstore?. We are currently sending the Carton IDs from Vendors/Warehouse so it cannot be sequential. We are getting below error. How this needs to be fixed?. Can we disable this auto generation of sequence numbers for carton id SequenceConfig.xml? . There are some instances where xstore also creates receiving documents, and document id gets autogenerated, but we can