its clear already, oerp have rules setting

Use internal configurations to alter views oor hide/delet fields.

first go to Settings> Users >select admin user and edit> check technical features and save

then go to "About" link in in dropdown beside logged in user name and activate developer mode

Then in debug list select "manage views" to make these changes. Search for video on youtube to see this if confused.

IF not a field but an automated action or on_change style method those too can be edited. Determine which it is first then proceed.