Thanks!
We are almost there, hopefully last issue...
Output of compose 3 ('part numbers') seems to be fine but still some blank cells are added to the table which are not needed.
I noticed it happens when there are more than 1 mail sent at the same time (which is more than probable).
Additionally, is there any quick solution go get rid of text after '='?


EDIT:
I created additional column (that indicated 'empties') and two more actions in order to delete the empties, but they have not been found, despite they were there..



Any ideas?