Symptom
You want to adapt and add an Extension field in the Enterprise Search / Global Search using the Adaptation Mode, however it is not possible to change the standard fields.
"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."
Environment
SAP Cloud for Customer
Reproducing the Issue
1. After create a KUT field e.g. from Accounts you want to add it inside the red mark.
Cause
At the moment the Enterprise Search / Global Search view does not support to add Extension Fields inside the red mark.
Resolution
This is the standard behavior of the system.
An alternative option may be to check the SAP Cloud for Customer Ideas Forum to submit an idea: SAP Cloud For Customer Influence
See Also
Keywords
Enterprise Search; Global Search; extension field search; , KBA , AP-RC-UIF-FLX , Page Layout & Key User Configuration , How To