What is the reason for Objects deleted in the Target system?
The reason for this can be that IDOC is just sent with no E1Pxxxx segments (where xxxx stands for the infotype number). IDOC structure is explained in note 134085. In segment E1PITYP it is specified the infotype that is sent. In the target system, that infotype records will be deleted within the dates specified in the segment. Then the system will create the records with the information in segment E1Pxxxx (where xxxx stands for the infotype number). But if E1Pxxxx segments are missing in the IDOC, then the infotypes are just deleted.