Possible to remove the email/name validation function for event ticket registration?

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I looked over the categories and didn't find one that looked applicable to my question, but please feel free to move it to the applicable category if one does exist.

We have an event and when buying a ticket and entering an email address and name for an email address that is already in the system and a the name doesn't match the name in the system, we get this message:

"The email address you entered matches an existing constituent or administrator account associated with a name that is different than the one you entered, which makes it invalid because each email address/name combination on this site must be unique. Try entering it again to be sure you have entered it correctly. If you feel this message is in error or need additional assistance, contact your site administrator."

Is it possible to turn this validation function off? I realize it says "each combination must be unique" but wasn't sure if it was because of a hard coded setting in the system? Or if it's a setting that we can change?

Thank you.

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