using standard infoobject in custom data target

Hi Experts,

    creating multi-provider in between the  no homo-genies and homo-genies

    1. Using the standard info object "0customer" present in 0sd_c03 can be  used in  in custom data target

•      Does it lead to any problem while data load in custom data target

     2. Identify assign in multi-provider between custom data target (no homo-genies ) and 0SD_C03.

•      Used 0customer and caldate field on both side's for Identify assign
•      material is a dimension in 0SD_C03 with EAN as a attribute and

              the same material is attribute of EAN code in custom data target (no homo-genies) how can i identify and assign .

    note: condition is material name differs in the both the data targets.