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Avalara Help Center

Can you use the API for ECMS record creation?


You want to know if you can use the Avalara API to create ECMS (exemption certificates) in the admin console directly.


Avalara API



  • Yes, you can use ExemptCertSave to create a new ExemptCert record associated with a company, or updates an existing one.
    • To create a new ExemptCert record, specify ExemptCertId of 0 in the request object, full documentation: 
    • To update a record, specify the actual ExemptCertId for the existing record, and change any values that you would like to update.


Note: Applied, expired, and revoked certificate records cannot be updated. 

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