In which cases is it necessary to attach an Motivational Effect Annex to the project proposal?

The Motivational Effect Annex is to be submitted whenever the project participant is a "large" enterprise (either as a bidder or as a co-bidder); the format of this annex is not prescribed, the format is a comparative analysis (comparison of the level of the intended activity with and without support), but the maximum size is set at two standard pages - see Article 5.6 of these tender documents; it is to be submitted via the ISVP application as an embedded pdf attachment.