This is a frequent ask in community circle: How to Customize Generic Error Message for Dynamics 365?
Say for example - You do not have sufficient privileges to xxxxxxxxxx
All these Error message strings (Resources) are stored in Messages of that respective entities. This one belongs to System user entity.
You can find them under: Settings -> Customizations -> Customize the System -> Entities -> User -> Messages
Keep the "Default Display string" as it is, and update the "Custom Display string" to whatever we want. Lets say - This operation is not allowed, for example.
Alternatively, you can export the translations & update in bulk, then re-import it.
Say for example - You do not have sufficient privileges to xxxxxxxxxx
All these Error message strings (Resources) are stored in Messages of that respective entities. This one belongs to System user entity.
You can find them under: Settings -> Customizations -> Customize the System -> Entities -> User -> Messages
Keep the "Default Display string" as it is, and update the "Custom Display string" to whatever we want. Lets say - This operation is not allowed, for example.
Alternatively, you can export the translations & update in bulk, then re-import it.
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