"code": "InvalidEffectiveDate",
	"target": "Unknown",
	"details": [
			"code": "InvalidEffectiveDate",
			"number": 901,
			"message": "Invalid Effective Date",
			"description": "The effective date in the Filing Request is invalid.  Please call the cycle safe api to view valid effective dates.",
			"faultCode": "Client",
			"helpLink": "",
			"severity": "Error"

This indicates that the effective date for your filing request is not valid. When using the automated filing request API, you can only request filing dates in the future that are permitted by the filing frequency of the form you are attempting to file.

To request a more complex filing calendar with a different filing date, please contact Avalara Support and request a custom filing service.