Twilio validation logic may prevent the addition of an admin teammate email address that may already be in use on an existing customer account. This means that customers may need to use email modifiers to invite IQVIA support team members. For more information on modifiers (as ClinSpark also supports their use) see here: User accounts and e-mail modifiers

To work around this, we recommend that customers add IQVIA support team members with a modifier in their account that reference the customer name. For example, if the support team member is john.smith@iqvia.com, the ‘teammate email address’ invite in SendGrid should be john.smith+customer@iqvia.com.