We are using below Office Javascript API to add the specified content to the beginning of the item body.
prependAsync(data, options, callback)
One of our customers is experiencing the following error. Everyone in that tenant is experiencing it. This issue persists even after office updates. Could it be a problem with any admin configuration settings? Please help.

Error: OSF.DDA.Error
Code: 2001
Message: "Cannot write to the current selection."
Name: "Data Write Error"