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Bing Shopping FTP Error "User cannot log in" or "Password required"

You may sporadically receive one of the following emails from our system:

Error logging in to FTP server 'feeds.adcenter.microsoft.com:21'. Check your credentials. E_WARNING: ftp_login(): User cannot log in.
Error logging in to FTP server 'feeds.adcenter.microsoft.com:21'. Check your credentials. E_WARNING: ftp_login(): Password required for username.

If your Bing feed had been working fine previously, then this problem is caused by Bing's FTP server.

To resolve the issue, please send the following email to freeshop@microsoft.com.

My Adcenter Account ID is X0999999. I am receiving sporadic FTP errors for my FTP uploads using Aten Software's data feed system. It is a one-time error that states either "Password required for username" or "User cannot log in". Please investigate.

You can find your Adcenter Account ID by logging into Bing Ads and looking in the Account drop-down, as shown below.

Where To Find your Microsoft Bing Ads Account ID

Your data feed will continue running daily and the error should go away on the next submission. By sending the email above, you will notify Bing that there is a problem and assist us with obtaining a permanent resolution.

If you have never set up your Bing Ads account, please refer to our Bing Setup Instructions.