APO Release creates duplicate schedule lines in ECC

Hello Experts,

I am facing an issue where duplicate schedules lines are getting created in ECC system after releasing it from APO system

Scenario :

I have ran the SNP heuristic planning process using scheduling agreement which has created schedule lines based on forecast demand.

Now, I am releasing these SNP schedule lines to ECC system using release functionality of APO.

T-code : /SAPAPO/PWBSCH1

I have already setup the release profile and have assigned it to the corresponding external procurement relationship document.

The duplicate schedule lines are getting created in ECC in below :

If I release two schedule lines SL1 & SL2 from APO, then it creates 4 schedule lines in ECC system i.e. 2 SL's for each APO schedule line.

If I release 4 schedule lines SL1, SL1, SL3 & SL4 from APO, then it creates 16 schedule lines in ECC system i.e. 4 SL's for each APO schedule line.

Please share your experience if you have faced the similar issue.

PFA screen shot of ECC system having duplicate SL's.

Regards,

Mahendra