With Integration (without MypdmTools) you can set up the utility as follows:
Here's the idea:
Operation n°1:
Condition: The file is a drawing
Action n°1: replace the backgrounds of the sheets according to their format:
Format of the sheet to be replaced: A4
Give the location of the basemap without logo for the A4 format
Action n°2: replace the backgrounds of the sheets according to their format:
Format of the sheet to be replaced: A3
Give the location of the basemap without logo for the A3 format
Operation n°2:
Condition: The file is a drawing
Action n°1: export the file
Define the location of the files to be exported (except EPDM, I think in your case)
Choose the export format (*.dwg).
On the other hand, your drawings must be archived (so read-only), in this case the change of basemap will not be taken into account on the original EPDM files.
If you have myPDMTools you have to go to the INTEGRATION options and uncheck all the options related to the EPDM.
@benoit.lf: in this specific case, not sure that you are obliged to load your drawings in the local cache since you are working on the drawing and not the part + the drawing (in the latter case, the EPDM sometimes does not know how to put the 2 in the cache).
On the other hand, it is preferable to clear the local cache before starting to process the files (so you are sure to process the files at the latest version).
However, where you're right, in the local cache you absolutely need the basemaps.
FYI in the attached file, a view of the EPDM options of the INTEGRATION utility.
When you don't have the file in your local cache, are you sure it will fetch it on its own?
I remembered that Integration (or another MyCAD tool) didn't handle this action...
EDIT: my brain haze is starting to fade...
The problem appeared when assigning materials or changing the basemap via Integration. When the parameters (Material Library and Basemaps in EPDM) were not in the local cache, Integration still ran without an alert message.