When variables seem to change randomly it is sometimes a sign that the mappings are set up incorrectly. You may want to check each variable in the EPDM admin tool to make sure that they do not use the same attribute name.
If two or more variables are setup to map to the same attirbute then they can appear to change randomly when only one variable changes! This can be very confusing.
During the "Paste as Reference" operation the file metadata is updated and the incorrect mappings are pushed to all the other variables with the same attibte name.
My advice would be to give each "departmental stage approval" variable a unique attribute name so they do not get upodated via another variable change.
Hope this helps!
Graham I have amended my variables as per your advice and sure enough it is now working as hoped. I have literally demonstrated the EC process on EPDM to a BSI inspector this morning and he was very impressed. So EPDM looks as though it is going to be a excellent tool for managing our Engineering Change.
Thanks very much for your help.