Thanks for asking question! Could you please clarify on " admin login credentials" to help you better on this. Further you may want to know that to secure app deployment from a local computer, Azure App Service supports two types of credentials for local Git deployment and FTP/S deployment. These credentials are not the same as your Azure subscription credentials.
User-level credentials: one set of credentials for the entire Azure account. It can be used to deploy to App Service for any app, in any subscription, that the Azure account has permission to access.
App-level credentials: one set of credentials for each app. It can be used to deploy to that app only. The credentials for each app are generated automatically at app creation. They can't be configured manually, but can be reset anytime.
Check doc link might help: https://learn.microsoft.com/en-us/azure/app-service/deploy-configure-credentials?tabs=portal#use-user-scope-credentials-with-ftpftps