Resolution: The following properties can be used to set the limit with regards to payload size/APIX-G logs. Note that the values are in bytes.
tibco.clientVar.ASG/ForwardLargePayloadLimit=1000
tibco.clientVar.ASG/ReverseLargePayloadLimit=1000
If
the payload is larger than the limit then anywhere in the code where
the payload is logged only the first xLargePayloadLimit characters are
logged. If the payload is larger than the limit then it is not copied
to the context document. Note that the payload will still be available
as the nbRequest / sbRequest in mappers. If the above global variable(s) is/are not present in the properties file the default value is set to -1, which turns this behavior OFF.