X12-DE-143
ASC X12 data element 143 — Transaction Set Identifier Code.
Definition
Element 143 (Transaction Set Identifier Code) carries the 3-digit transaction set number — 850 (Purchase Order), 855 (PO Ack), 810 (Invoice), 856 (ASN), 997 (Functional Ack). Position ST01 of the ST (Transaction Set Header) segment.
Origin
Published by ASC X12 in the Data Element Dictionary (TS 838). Maintained under ANSI ASC X12 governance with semi-annual reviews.
Example in context
ST*850*0001~ — opens a Purchase Order, control 0001.