How To Fix AD_SUBCON188 - &1 selected serial number(s) are already assigned to a delivery

SAP Error Message - Details

• Message type: E = Error

• Message class: AD_SUBCON - Messages for Subcontracting

• Message number: 188

• Message text: &1 selected serial number(s) are already assigned to a delivery

What causes this issue?

All possible serial numbers appear in the serial number popup, even
those that have already been assigned to outbound deliveries.

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?

You must check which serial numbers have already been assigned and
manually remove them from the selection list.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.