Diagnosis
Reporting point quantities still exist at the reporting points.
If you want to post a final backflush at the last reporting point for amaterial with optional reporting points, all reporting point quantitieshave to be zero if the function "automatic goods receipt at lastreporting point has been activated.

Procedure
Backflush each reporting point individually so that all reporting pointquantities are zero. Then you can post the goods receipt for thematerial (using the goods receipt transaction).