Answer
If the Batch Import has not yet been launched and the job is still "In Preparation", it can be edited (by clicking on the "Edit" button at the top of the Profile Card). Go to the relationship grid at the bottom of the Profile Card, select the row that corresponds to the document (1) to be deleted and choose the "Delete link Document Batch Import" on the right side (2).
For more information, please check the document below:
