Yes, without those values taxes will not be returned for transactions in either of these countries
Address Validation
Is address validation supported in all countries?
No, address validation is only supported for US addresses at this time. Addresses from other CereTax-supported countries, like Canada, can still be used to calculate tax, but cannot be validated using the CereTax app. CereTax will return an error in Business Central when it cannot determine the location of the transaction based on the address inputs provided.
Tax Calculation
Can taxes calculated by CereTax be posted to different G/L accounts?
No, currently all taxes calculated by CereTax in Business Central can only be posted to a single G/L account that is selected in the CereTax Integration Settings page.