Trying to file Form 8868 electronically to extend a Form 990 using ProSeries 2020. The software is giving me an error related to the "Sign Form 8868 electronically using Practitioner PIN" box on the 8868 Information Worksheet. Form 8868 doesn't require a signature, why is it making me do this? There is no balance due or payment being made. If I check this box, it then wants me to enter an Officer PIN, but Form 8453 doesn't obtain a PIN from the client?