Hi,
Most of the time, when an SNP PDS is transferred from ECC to APO system, the PDS in APO has components missing. Make sure that the following checks are done
1) Component is already present in an active integration model
2)The component is relevant for planning in APO . In MM03 , check MRP2 tab, and make sure that the "MRP type" field is relevant for planning in APO
3) Component is relevant for planning in SNP or DP. In /sapapo/mat1 for the product, under the tab "properties" set the value of the field "SDP relevance" to "blank" or "2" in order to make the product relevant for SNP planning
Thanks
Gomathi