Don't Know Trade (DKT) over 4.0 & 4.2

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Imported from previous forum

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We are looking to work with clients on different versions of FIX and translate between 4.2 and 4.0. If we want to be able to pass on a 4.2 DKT message to a 4.0 engine, but we do not have details for tags LastShares[32] and LastPx(31) what would be the best procedure to use, set one or both to ‘0’ as a default ?

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Using 0 seems like a logical idea, however, you probably want to verify how the downstream system you’re referring to handles/wants this.

> We are looking to work with clients on different versions of FIX and translate between 4.2 and 4.0. If we want to be able to pass on a 4.2 DKT message to a 4.0 engine, but we do not have details for tags LastShares[32] and LastPx(31) what would be the best procedure to use, set one or both to ‘0’ as a default ?
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