Before realizing the U/M was incorrect, BOMs were created utilizing a change number. These materials have since been deleted from any BOMs with the same change number and any dependent requirements, purchase requisitions, planned orders and material staging requirements have been deleted or removed.
Now the only error message returned when attempting to update the U/M is "the material is used in bills of material" even though CS15 indicates it is not used anywhere.
A BOM with only a few materials was removed from the change master utilizing CCUNDO and only then was the U/M able to be updated. The BOM has since been recreated with that change number but would rather not have to go through that process to update the remaining materials.
Any help would be greatly appreciated.