Created an end entity profile with a subject DN with CN field, 5 OU fields, O field and C field where:

• CN is required and modifiable;
• The first OU field is required and not modifiable;
• The next 3 OU fields are modifiable only (not required);
• The last OU is required and not modifiable;
• O is not required and is modifiable;
• C is required and is modifiable.

When trying to add a new end entity, without filling one (or two or three) of the three
(non required) OU fields it throws an exception:
"Subject DN field 'ORGANIZATIONUNIT' must exist.
org.ejbca.core.model.ra.raadmin.UserDoesntFullfillEndEntityProfile: Subject DN field 'ORGANIZATIONUNIT' must exist.
at org.ejbca.core.ejb.ra.LocalUserAdminSessionBean.addUser(LocalUserAdminSessionBean.java:504)".

If we use all five OUs there is no error.

This happens both in the AdminGUI and via the WS API.