Sebloders Hello, I have a big problem and ask for help to all. 
I created a form that must be updated by 2 users. 
First user must insert 6 fields, the second user must enter two fields. 
First user inserts and updates all fields without any problems. 
The second user when entering his fields and records, without the possibility to change the fields of the first user, the fields are "read only", delete some fields or change them into value. 
I.E .: 
user1 - insert: 
                        State: Italy 
Region: Sicily 
                        Name: Louis 
                        Date of Birth: 20-25-1980 
                        Work: Employee 
                        Freshman: 123 
                        .............................................. 
        User 2 - adds the additional data records 
Years of service: 33 
                         hire date: 10/04/1955 
when the second user sends the data we will have: 
                        State: Italy 
                        Region: Sicily 
                        Name: Louis 
                        Date of Birth: EMPTY 
                        Work: Employee 
                        Freshman: 123123 (double value) 
Years of service: 33 
                        hire date: EMPTY 
.......................................................
if the second user enters the data again we will have: 
                        State: Italy 
                        Region: Sicily 
                        Name: Louis 
                        Date of Birth: ALWAYS EMPTY 
                        Work: Employee 
                        Freshman: 123123123 (triple value) 
Years of service: 33 
                        hire date: ALWAYS EMPTY 
To make this work I have used the ACL plugin and restrictions usergroup ......
unfortunately I do not understand why eliminates some data (calendar date) and has several times more data in addition (Freshman). 
Any ideas and suggestions for this strange problem?
Thanks, Louis