Hello Apana,
Check the ALE logical systems (correctly mapped or not),
Can you share us the IDOC status by using WE02 /WE05 transaction codes.
please set up in table T77S0 in PCR two parameters to which will help you to analyses the issue:
HRALX PALEP 'BAL' Log: Employees in ALE
HRALX PRTON 'X' Logging Active
Thanks
Siva