Account is not getting replicated to ECC although BDOC was successfully processed

Hello experts,

today we experienced a weird behaviour in our SAP CRM / ECC system. Two accounts who should be available in SAP ECC are not replicated from SAP CRM (checked in table KNA1, vd03, xd03). In SMW01 there are corresponding BDOC entries stating that the BDOCs were processed successfully (Green traffic icon).

Can you someone provide any sort of tips or hints for finding the issue.

Thanks a lot

Wladimir