A dose was mistakenly given intradermally instead of IM or SQ, with no reported AE; the person thought they were picking up a vial of PPD, but she picked up the IPOL instead, with no reported AE; Initial information regarding an unsolicited valid non-serious case was received from physician and consumer/non-health care professional (HCP) via Medical Information (MI) (Reference number- 00858612) and transmitted to Sanofi on 15-Nov-2021.  This case involves (8-or 9-year-old) child and unknown gender patient who given dose was mistakenly given intradermally instead of intramuscular or subcutaneous (incorrect route of product administration) and the person thought they were picking up a vial of TUBERCULIN TEST [TUBERCULIN PPD], but she picked up the IPV (VERO) [IPOL] instead (wrong product administered).  Relevant medical history, medical treatment(s), vaccination(s) concomitant medication and family history were not provided.  On an unknown date, the person thought they were picking up a vial of TUBERCULIN TEST [TUBERCULIN PPD] for tuberculin test, but she picked up the IPV (VERO) [IPOL] received 0.1ml total dose (batch number and expiry date were not reported) (Frequency = Once) (Strength = Standard) (Form: Suspension for injection)via intradermal route instead of intramuscular or subcutaneous for prophylactic vaccination instead (wrong product administered and incorrect route of product administration).  It was reported "Do you recommend repeating the dose and, if so, after what period of time. Thanks for any guidance you can provide. There is so far no adverse effect locally at the injection site. Dosing route and site standard emailed with custom opening. Physician states that he has learned more details about the event since he sent the email on 15Nov2021. Physician states that the person gave IPOL intradermally by mistake. Physician states that he does not need to know whether to repeat the IPOL or not because the IPOL was not needed in the first place. Physician reporting potential (adverse event) AE. No medical questions asked by physician. From what I understand, the reason it (IPOL) was given intradermally was because I think the person thought that she had a vial of PPD, so she drew up 0.1 mL and gave it. She only gave 0.1 mL (of the IPOL) because that would have been the correct dose for PPD. So, she mistakenly gave 0.1 mL, which is only 20% of the correct dose of IPOL, because she was thinking that she was giving PPD. So, I do not need to know whether to repeat the IPOL or not because it (IPOL) was not needed in the first place. There was no local irritation or anything. I thought I would report it, but it is irrelevant now. I reported it last night (15Nov2021) but I didn't know it was a mistake at that time. I thought she meant to give the IPOL and gave it intradermally instead of (intramuscular and subcutaneous) IM or SQ. Now, I have the full details. No, I do not have the IPOL lot number and expiration date. I am the Medical Director of a number of facilities, and they reported it to me. I do not have access to that information. If you send me an email, I can find that out and let you know. I can ask the nursing director. The clinic mainly deals with kids who do not have insurance".  This case was an actual medication error due to inappropriate route of vaccination and wrong vaccine administered (latency: same day).  At the time of reporting no adverse event.  This suspected adverse reaction report is submitted and classified as a medication error solely and exclusively to ensure the marketing authorization holder's compliance with the requirements set out in the Directive 2001/83/EC and Module VI of the Good Pharmacovigilance Practices. The classification as a medical error is in no way intended, nor should it be interpreted or construed as an allegation or claim made by the marketing authorization holder that any third party has contributed to or is to be held liable for the occurrence of this medication error.  There will be no information available on the batch number for this case.