Generally, the RSM Admissions Office will start processing the secondary school diplomas in June, once all (master) applications have been evaluated and all results have been sent.
Once your documents have been processed, you will be notified via the Online Application Form (OLAF) that your offer has been made unconditional.
Submitting your diploma earlier does not lead to faster verification. Take into account that we receive hundreds of diplomas in July and August, so please allow at least 10-14 working days weeks for your documents to be processed.