SES &1 item &2: Reference purchase order item is a limit item.

What causes this issue?

You have entered a purchase order limit item as reference (item category
E: Enhanced Limits). The creation of service entry sheets via Excel
import is only available with reference to standard items in the
purchase order.

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?

Please maintain only item numbers of purchase order standard items as
reference in the Excel file.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.