Based on the information provided in the context, if the Azure Trusted Signing Identity Validation process fails on the first step, it could be due to incorrect information provided during the identity validation request. It is important to ensure that the correct information is provided during the request, and that the organization name, website URL, primary and secondary email addresses are accurate. If the information provided is incorrect, a new identity validation request must be completed. If you require assistance with identity validation, you can reach out via Microsoft Q&A or Stack Overflow, tag: trusted-signing. Identity Validation issues aren't supported by Azure Support.
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