In large-scale petroleum transaction systems, data is exchanged between Point of Sale (POS) terminals and central hosts using fixed-length or delimited message formats. Standard codes (like NACS codes) identify common products like "Unleaded Regular" or "Diesel." However, manufacturers and payment processors often reserve specific "blocks" of codes for: Future Proofing:
Ensure that proprietary fuel codes are correctly mapped to their respective defined fields. undefined fuel-reserved for proprietary
However, the standards body leaves a block of "empty" codes reserved. These are specifically for use by vendors or merchants. When your system displays this error, it means: In large-scale petroleum transaction systems