I am coming in on this a bit late, but I am also having the headache of OEMs sending me requests for updated data given the rev 7.0 changes.
I think the following may give others some explanations regarding the changes and why warnings are coming up:
I have to note, that the OP kind of has the wrong idea about the need to change or at least acknowledge the warning errors and I hope the attached link helps. It is not about amending the raw data, it is about addressing the quality of that data. In many instances, it is the material classification that has been simply wrongly stated. However, the IMDS steering committee must take steps to ensure it is clear what OEMs should do in the presence of warning messages, as it is not feasible or fair to expect them and their suppliers to amend all warnings. Accepted IMDS submissions should be reviewed with a retrospective approach to the rules. A bit like the application of regulations and CSRs (customer specific requirements), they should apply to newly developed parts only, unless there are the errors are such that they will effect compliance with legal regs or directives.
It is also worth noting that "Warnings" are that, flags for attention, not necessarily show stoppers! See:
and follow the "information regarding warnings in IMDS quality checks" link.
Hope this gives more info. Our specific issue is now with process gases and liquids noted in metal coatings and passivations. Our supply base tends to break these coatings down in their ingredient form rather than their finished form, which is going to cause us headaches!!