The configuration of the DataSetWriters in a WriterGroup can result in a fixed NetworkMessage layout where all DataSets have a static position between NetworkMessages.

In this case the parameters NetworkMessageNumber and DataSetOffset provide information about the static position of the DataSetMessage in a NetworkMessage Subscribers can rely on. If the value of one of the two parameters is 0, the position is not guaranteed to be static.

NOTE A Publisher can only provide valid values for the parameters NetworkMessageNumber and DataSetOffset if the message mapping allows keeping the value for these Properties constant unless the configuration of the WriterGroup is changed.