Reference Guide
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Tamper Proof Logging
Tamper Proof Configuration
the tamper proof parameter is enabled by default, and hashing is used in the batch process if tamper proof is disabled, the batch process will not be executed navigate to administration > system config man click add add the tamper proof enabled parameter and set its value as true or false to enable or disable it navigate to administration > job scheduler click add set the tamper proof log job parameters by setting this job, logs will be hashed in the background this job can be set periodically or triggered manually