Before 11.5.10, the E-mail Notification supports multiple E-mail addresses as long as the combined addresses list is no longer than 60 characters. The E-mail addresses need to be separated by commas. As a workaround the supplier may setup a distribution list address, including all the single E-mail addresses that would receive the E-mail. We were able to use only a single e-mail address when using the feature to mail during the approval process . The use of commas to separate multiple addresses is no longer supported in 11.5.10 or Release 12. Refer to Note: 333719.1 11.5.10: Not Able To Send Multiple E-Mails Upon Approval Of Purchase Order for details. When attempting to set an email address for a supplier site to multiple email addresses the following error occurs: Error Row 1 Email - Please enter a valid Email Address. As of now, the following workarounds are available : 1. Using Professional Buyer Work Center in R12, where you can ment