Thank you for reaching out to Microsoft Q&A Forum and sharing your issue when accessing your DP-203 certification in the Microsoft Certification Dashboard.
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After checking your concern, I truly apologize to inform that Microsoft Certification/Exams is currently not supported in this Q&A forum. However, I'm here to assist and guide you to the right resources, you can check your certifications in your certification tab.
If you don't see them in there, please use this link to create Certification support request:
https://aka.ms/credentialssupport for this issue so that you can get more professional help, there will be very professional people to tell you about the steps on how to realize this function. Then you can see this request screen and you can select different options depending on your needs. Note: you have to log in your business account first in the link above then you go to support link below in the Credentials support article so that you can see the support screen like this image below:
For your reference: Credentials support | Microsoft Learn
I hope this information can clarify the situation and help you to resolve it.
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