Once you unlink a field a field in the SBR from the corresponding field in the source record, the SBR is recalculated by the survivor calculator and the field can be updated by changes made to other source records. The following figure shows an SBR with no fields linked, as indicated by all of the link icons next to the SBR fields (in the column beneath the red arrow).
Using one of the search methods described in Searching for Object Profiles on the MIDM, display the object profile containing the field you want to link on the Record Details page.
At the bottom of the page, click Edit EUID.
Scroll to the field you want to unlink.
Click the chain–link icon to the left of the field in the source object.
Click OK on both dialog boxes that appear.
Click Save at the bottom of the page, and then click OK on the confirmation dialog box that appears.
The icon is moved from the source record field to the SBR field that is no longer linked. The SBR is recalculated by the survivor calculator.