Serial number management is not possible with backflushing

What causes this issue?

You have specified that the material is to be backflushed. You have
also defined a serial number profile, meaning that serial numbers have
to be used with goods movements. However, it is not possible to specify
serial numbers in conjunction with backflushing.

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?

Correct your entries.

Error message extract from SAP system. Copyright SAP SE.