Monitoring Splunk

Splunk Add-on for 0365: Why am I receiving Invalid Token?


Hi , 
Why are we receiving this kind of issue on "o365:cas:api"
while the others listed below are working as expected.

  • o365:graph:api
  • o365:management:activity
  • o365:service:updateMessage

We didn't put a Cloud App Security Token in the tenant configuration since we already have the client secret, Tenant ID, Client Id, Tenant Subdomain and Tenant Data Center Is it needed for the "o365:cas:api" to work?


2022-02-28 07:02:42,801 level=ERROR pid=23110 tid=MainThread logger=splunk_ta_o365.modinputs.cloud_app_security | datainput=b'at_rbi_cloud_microsoft_cloud_application_security_files' start_time=1646031762 | message="Data input was interrupted by an unhandled exception."
Traceback (most recent call last): File "/opt/splunk/etc/apps/splunk_ta_o365/bin/splunksdc/", line 70, in wrapper return func(*args, **kwargs) File "/opt/splunk/etc/apps/splunk_ta_o365/bin/splunk_ta_o365/modinputs/", line 184, in run return File "/opt/splunk/etc/apps/splunk_ta_o365/bin/splunk_ta_o365/modinputs/", line 47, in run for message in reports.get(self._session): File "/opt/splunk/etc/apps/splunk_ta_o365/bin/splunk_ta_o365/common/", line 639, in get raise O365PortalError(response) splunk_ta_o365.common.portal.O365PortalError: 401:{"detail":"Invalid token"}

2022-02-28 07:02:42,801 level=ERROR pid=23110 tid=MainThread logger=splunk_ta_o365.common.portal | datainput=b'at_rbi_cloud_microsoft_cloud_application_security_files' start_time=1646031762 | message="failed to get error code" body=b'{"detail":"Invalid token"}'
Traceback (most recent call last):
File "/opt/splunk/etc/apps/splunk_ta_o365/bin/splunk_ta_o365/common/", line 44, in __init__
self._code = data['error']['code']
Labels (1)
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Hey @jadengoho , 

This is due to access issue ,After creating token/Tenant ID , That Token required the read permission of the API graph. 

Below the excel sheet you can refer and ask the AD team to provide the read access to the token.

One last things, if all the permission are up to mark check if the proxy is configured.

Rohit Joshi
Splunk Architect
0 Karma
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