3279423 - "This is a required field. Please enter a value" error in Manager field in Manage User tool

Manager field in Manage User tool shows error when getting modified to a different manager/user: "This is a required field. Please enter a value"

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental. 

SAP Successfactors HCM Suite

1. Login to customer's instance
2. Go to Manage Users
3. Select new or current employee
4. Enter manager name (any name from the available list.
   
   *The manager name field cannot be filled out. Error will show: "This is a required field. Please enter a value"

The error is due to a wrong configuration of full name in Text Replacement tool for the Manager field (User_Display_Name). 

The configuration was corrected in Text Replacement.

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