The usual cause of this, is because there are Transfer Grades Entered for this Student for the Transfer School Year. To correct this, if you delete the Transfer Grades for that School Year, you will then be able to Delete the incorrect Transfer School Year and re add it. 

To delete the Transfer Grades, navigate to:
  1. onRecord > Procedures > Grading > Manage Grades > Search the Student 
  2. Click Grades and Credits - Transfer
  3. After making note of the Grades recorded to be re entered later, click Delete for each Grade listed
To remove the incorrect Transfer School Year/Grade, and add the correct School Year navigate to:
  1. Core > People Finder > Search the Student
  2. Click into the Students Record
  3. Click the Editing Pencil on the Access Tab next to the Persona
  4. Click Edit Transfer School Enrollment
  5. Click the Trash Can Icon to delete the Transfer School
  6. Click + Add another enrollment
  7. Select School Year, Transfer School, Equivalent to, Grade Level, Enroll and Depart Date
  8. Click Save
To re record the Transfer Grades, navigate to:
  1. onRecord > Procedures > Grading > Manage Grades > Search the Student 
  2. Click View next to Grades and Credits - Transfer
  3. Click Add Transfer Course and enter in the Grade
  4. Click Save and repeat this process for EACH Grade that needs to be added