Hello R. Brahmankar and Sabine,
thanks for your support. At the end I get BAPI WORKORDER_GOODSMVT with method GOODS_RECEIPT running. There I was able to adjust the batch each time during prod confirmation in the way I want.
Second hint for the ones which needs this also: Activate business function LOG_PP_SRN_CONF. WORKORDER_GOODSMVT~GOODS_RECEIPT will get than the shift information too.
best regards
Andreas