How To Fix TD281 - User &1 has no system access authorization using destination &2

SAP Error Message - Details

• Message type: E = Error

• Message class: TD - SAPscript: Text editor, composer, forms, styles and fonts

• Message number: 281

• Message text: User &1 has no system access authorization using destination &2

What causes this issue?

When your system is accessed using the RFC destination &V2&, a check is
performed to see if the user name and installation number of your
system correspond to each other : The first part of the user name must
be the same as the installation number, followed by an underscore
("_"), and an alphanumeric character.
Example:
Installation number "0102030405": Possible user names include
"0102030405_2" and "0102030405_A"

System Response

You cannot use the Form Painter.

How to fix this error?

Tell your SAP system administrator. He must create a user name
according to the criteria above.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.