We attempted to upload W-2s using a .txt file which was created in excel after doing the interview for the state of MD.  However, when we tried to upload this file to the new MD Tax Connect Portal using their "Transmitter Transactions and File Bulk Returns" feature under botht he test and submit options, we received the following two errors:

R200008 - Record RF is Required.

R100005 - Record RF Should Be The Last Record.

We looked through their instructions but did not find any solutions.  We opened the .txt file to view the data and the issues seems related to how the file is generated from excel, which is a Addin from Quickbooks Desktop. 

The portal instruction on uploading W-2s can be found here: https://www.marylandtaxes.gov/forms/24-forms/Reporting-W2-Instructions.pdf

We have done this previously for many years using their older bulk upload website with out error