Program error for &

What causes this issue?

A program error has occurred.

System Response

This error should normally be checked by the program.

How to fix this error?

Notify SAP of the complete error number and description as well as the
data used.

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.