SAP Message V4340 - Index VLPKM: found scheduling agreement item &1/&2 does not exist (VBAP)

Diagnosis
For the scheduling agreement item &V1&/&V2& found in index table VPLKM,there is no entry in table VBAP.
Before release 4.6C the field POSNR was not in index table VPLKM. Ifscheduling agreements were transferred from such a system, then there isan entry with an initial item number.

Procedure
Index table VLPKM must be rebuilt with report RVV05IVB (box SalesDocuments: Scheduling Agreements/Unloading Point). The index can bebuilt selectively for individual sales documents.