modular input xml streaming doesn't accept time element

[kundeng]

splunk modular input xml streaming mode allows specifying timestamp explicitly for each event. But it is not working for me.
Instead, splunk tries to find the event in the raw data and use index time if it is unavailable.

For example, my XML looks like this, and it would take 20150324111100 as the timestamp instead of 1540488716

I have also configured props.conf according to a hint in the documentation and it doesn't work either.
http://docs.splunk.com/Documentation/Splunk/7.2.0/AdvancedDev/ModInputsStream#Streaming_example_.28X...

Modify $SPLUNK_HOME/etc/apps/myapp/default/props.conf

[my_config]
SHOULD_LINEMERGE = false

2018-10-25 13:31:56,858 INFO the xml file looks like

<stream><event stanza="hl7_modular_input://test"><index>main</index><time>1540488716</time><sourcetype>hl7</sourcetype><data>MSH|^~\&amp;|EPIC|GMC||GMC|20150324111100|RECRN|ADT^A10|725308|T|2.3||||||||| 
EVN|A10|20150324111100||ADT_EVENT|Model User^RECOVERY^NURSE^^^^^^OHSA^^^^^GMC1|20150320125007| 
PID|1||3100068670^^^EPI^MR||OPTIME^TESTAVS||19950320|M|||^^^^^US^P|||||||6100212816|636-99-9512|||||||||||N|| 
PD1|||GRANT MEDICAL CENTER^^1013100||||||||||||||| 
PV1|1|O|GSAG^OR ^OR^GMC1^^^^^^^DEPID|EL|||13020^LOMBARDI^ADOLPH^V^^^^^STARPROV^^^^STARPROV|||Surgery|PACG^^^GMC1^^^^^^^DEPID|||Phys/Clinic|||13020^LOMBARDI^ADOLPH^V^^^^^STARPROV^^^^STARPROV|OP SURGERY|6100212816|SELF||||||||||||||||||||||^^^GMC1^^^^^^^|^^^^^^^^^^|20150320125007||||||22150790003 
PV2||GENERAL||||||20150320130000|||||||||||||n|N||||||||||||||||||||||||||| 
ZPV||||||||||||20150320125007||||||||| 
AL1|1|Drug Class|45202^NO KNOWN ALLERGIES^|||||| 
GT1|1|100046657|OPTIME^TESTAVS^^||^^^^^US|||19950320|M|P/F|SLF|636-99-9512||||||||||||||||||||||||||||||||||||| 
</data></event></stream>

[kundeng · Accepted solution]

I think I figured it out.
The splunk documentation is wrong.

http://docs.splunk.com/Documentation/Splunk/7.2.0/AdvancedDev/ModInputsStream#Streaming_example_.28X...

The setting to force using input-layer timestamp should be
DATETIME_CONFIG = NONE (or CURRENT)