System is not allowing to add multiple email ID while creating supplier contact

Summary:

1. Defaulting of email address will only happen if communication method is set as "Email" at supplier site level.

2. While defaulting the email address, if we have one supplier contact associated with the supplier address then emailId associated to supplier contact will be defaulted while creation of PO
ELSE
if we have multiple supplier contacts associated with the supplier address then emailId associated to supplier site will be defaulted while creation of PO.

3. In case of multiple supplier contacts, we can explicitly select a supplier contact from LOV if we want.

Based on the above email ID picking criteria of oracle, we are looking for an work around , that while creating supplier contact multiple email IDS should be capture with comma separator, which is currently throwing an error.