How to delete automatically created supplier site assignments during external registration

Summary:

How to delete supplier site assignment client BU or Proc BU. The screen has the delete option disabled even though line is selected.

Content (please ensure you mask any confidential information):

Hello All,

Please let me know how to delete supplier site assignment client BU or Proc BU. The screen has the delete option disabled even though line is selected. Is there a role that I am missing? Please suggest.

Thanks

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