User &1 is not set up as a trader in company code &2

What causes this issue?

The limit characteristic "trader" contains the incorrect value &V1&.

System Response

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

How to fix this error?

In additional data for the transaction, enter a valid trader. Or delete
the contents of the field.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.