If you don't have RESPONSEID as a question in your file, you will see a warning in your meta data transformation saying "No variable has been marked as respondent id". See image below:

To avoid the import error, you have to click on your right mouse button and a list appears what can be done. Click on the first option "Create Respondent ID variable", see image below.

After you selected that option, Dapresy will ask you if you would like to create a new one or if you would like to select an existing question to become your Respondent ID.

In case you choose select an existing, please note that you will need to have a numeric question with unique answers and that the maximum number of digits in the answer can be 14.

Save your meta data transformation on the top right and select this during your data import.

What else can you do during the meta data transformation?

All done? Continue!