Prospective supplier end date without tax Organization type

Summary:
We have bulk prospective suppliers created past year that needs to be cleaned up but they dont have Tax Organization updated. When i try to end-date such suppliers via API get below error. Unable to pass 'null' as a value

You must provide a value for either the TaxOrganizationType or TaxOrganizationTypeCode attribute. (POZ-2130496)
API:
https:<hostURL>/fscmRestApi/resources/11.13.18.05/suppliers/{SupplierId}
Body:{    "InactiveDate": "2025-03-24",    "TaxOrganizationTypeCode": null}

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