>>>We are experiencing various errors when multiple users are adding records, specifically "Update Conflict" and "Uniqueness of x is violated". We are using optimistic row buffering and have an error routine that traps these errors. For the "Uniqueness" error we have coded a retry however we then get
>>>"Table buffer for alias x contains uncommitted changes.".
>>>
>>>Has anyone got any ideas as to what were doing wrong, or any suggestions of a better way to handle these errors.
>>>
>>>Thanks.
>>
>>Do you have primary tag on your table? How do you generate this key for new records?
>
>We do have the field marked as a primary tag. It appears to be giving us the error on the Append Blank ie. two people have created a record on the table with a primary key of spaces.

You should either generate key right from field default value procedure, or use INSERT INTO instead of APPEND BLANK.