Unable to delete line items on newly created UDC

Hi ~

Using JDE 9.2.

Business user created new User Defined Code Type under Product Code 08 using program P0004A | W0004AD; User Define Codes = SX.

After adding new records under 08/SX, using program P0004A | W0004AA, the records are not editable and can not be deleted.

Attempted to delete the records by:

1) Selected one of the records and click the green check mark and received blank record.

2) Place check mark in box next to records that need to be deleted and then select the trash can. The records appeared to delete. However, after clicking the find button, the records are still listed.