You want to find out what username and Apple Developer names are being used. This article provides information on how to verify the information in Apple Username (ID) and Developer Name field.
During the iOS publication process on the CMS, the iOS Submission Info Page prompts to enter the Apple Username (Apple ID), and Developer Name, besides the Password.
Please verify how the entries in ID and Name fields are related to each other and the publishing Individual/Organization/Entity.
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