Your logic needs to be:-

If the button is clicked and it reads 'Edit' then
- if I can get a lock on the record then
-- perform the button change
- else
-- tell the user the record is locked
- endif
else
-- It must be a save button, so save the record...
-- ...and perform the button change.
endif

>I have form whose buffer mode is pessimistic and the cursor in the data environment is pessimistic row buffering
>(I would use OR buffering if I could get it to work).
>The form has a that has a button that I am using for an edit/save.
>As long as I am dealing with one user the code works fine, but
>I have been tring for days to figure out how I can handle the issues with multiusers clicking the edit/save button.
>