Hi @Umer Nalla,
I have read your artical "Introduction to Elektron Message API", it benefits me well, but I have a question -- does the "ACVOL_1"(FID=32) indicate volume value(in your article)?
Refer to the RDM Field Dictionary file, ACVOL_1 is "VOL ACCUMULATED" which is accumulated number of shares, lots or contracts traded according to the market convention.
However, its definition may be different among markets or exchanges. I would suggest using a Thomson Reuters Data Model Discovery tool to verify the definition used by markets or exchanges.