Export Azure SQL DB Error: “Missing the required ‘administratorLogin’ parameters for ImportExport operation.”

Few days ago, I have been working on an issue that customer trying to Export Azure SQL Database using Azure Portal, facing this Error Message: ErrorCode: 400 ErrorMessage: Missing the required ‘administratorLogin’ parameters for ImportExport operation. Symptom: Customer is using Google Chrome browser connect to Azure Portal and trying to Export Azure SQL DB, frequently…