Thanks, Laksmi, by your early and complete response.
Our system uses DCM API for uploading offline conversions for DV360 with matchid without problems for customers with account at DCM. We can get the profileId of the user from the DCM panel.
But, in this case, our customer don't have an account at DCM, only at DV360.
Is it possible upload conversions to DV360 via DCM API in such situation?