EPM Automate runIntegration does not take parameter Period

Summary:

I am using a groovy script for epmautomate for running a quickmode data export to file Integration and I need to use Period from Filters but not periodName parameter from runIntegration command . However, when i am using
automate.execute('runIntegration','DLR_EXPORT_CUBE','exportMode=Replace','Period=Sep') , it gives me below error:

EPMAT-1:EPMFDM-ERROR: periodName parameter format is invalid.

Any suggestions around this?

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