KS3U021E The dataset could not be accessed due to an incorrect dataset organization. The dataset must be a sequential or a fully qualified member of a partitioned dataset.

Explanation

The dataset that you specified is partitioned, but you did not specify a member name. Also, you might have specified a member of a partitioned dataset, but the dataset is sequential.

User response

Correct the dataset name and retry. Note that you cannot access VSAM datasets using this dialog box.