Hi, In a workflow the last step is 'concatenate datasets' where the results table (dataset 2) is concatenated to a table header (dataset 1). Issue is that whenever the workflow is run, the table header dataset is required input at runtime. Is there a way to fixate that e.g. making it the input not necessary at runtime but take it from shared datasets or something ? Btw: I did try to first publish dataset 1 hoping that this would solve the problem but unfortunately it does not. Or is there another way to add a header in such a way that the users should not be taking care of it themselves ? Regards, Marc ________________________________________ THIS E-MAIL MESSAGE IS INTENDED ONLY FOR THE USE OF THE INDIVIDUAL OR ENTITY TO WHICH IT IS ADDRESSED AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL AND EXEMPT FROM DISCLOSURE. If the reader of this E-mail message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately at ablynx@ablynx.com. Thank you for your co-operation. "NANOBODY" and "NANOCLONE" are registered trademarks of Ablynx N.V. ________________________________________