Message Number list used by SAP ABAP Function Module SDU_DOCU_PREPARE (The function updates doc. with variables (create/change var.))
SAP ABAP Function Module SDU_DOCU_PREPARE (The function updates doc. with variables (create/change var.)) is using
# Object Type Object Name Object Description Note
     
1 Message Number  UD - 056 Text contains &1 unknown entity type(s)