Is there a way to update the _part_number on an existing line item?

Summary:

I am trying to update the _part_number line attribute in addition to 3 other custom attributes via an action button that returns a string value to the quote. The 3 custom attributes update but not the _part_number does not.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Version: 23C Patch 5

Code Snippet (add any code snippets that support your topic, if applicable):

This is the string that the action button returns....

14~_part_number~104-9323-RAC|14~cATALOGOUTPUT_line~EB-EAC-PXTX-E5-CA-19AE-K1Y2-XXTF-XX-B0A-RAC|14~warehouse_line~RA|14~itemClass_line~H1|