checksum

Imported from previous forum

Hi,

I read through this thread about checksum: http://www.fixprotocol.org/discuss/read/585f79f3

However, I am still confused whether the standard requires the receiver to perform the checksum after decoding and putting back the omitted values (e.g. constant). Or is it up to decoder to decide?

Thanks in advance.

Cheers,
Hei