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PPDS Log Error-Activity Net Contains a Cycle

Former Member
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Hi Friends,

Need your help in solving one issue.

In PPDS Log error report, I am getting an error"PPM0000.......xxx: Activity net contains a cycle".

On doing analysis we found that in PPDS PPM under activity relationships, the operation / activity field in predecessor and successor are same.

Could anyone please help me understanding the reason for this and how can we rectify this?

Thanks and regards,

Indrajit D Chaudhuri

Accepted Solutions (1)

Accepted Solutions (1)

Former Member
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Hi Indrajit D Chaudhuri,

PPM is generated based on bom and routing in R/3 data, the

exact replica of R/3 data results in PPDS PPM

Hence the predecessor/successor at the activity relationship

is based on R/3 data.

I would suggest to check the bom and routing and correct the

master data accordingly and recif it and then try

Regards

R. Senthil Mareeswaran.

Answers (1)

Answers (1)

Former Member
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Indrajit,

This is a master data issue. Consider activity A. This activity has a predecessor as Activity B and a successor as Activity B. So, Activity B will trigger Activity A which will again trigger B and again A and so on. This will cause a cycle and the scheduling is not possible. Hence, a valid error.

For PPM/PDS its best to make changes to your recipe in ECC. Once that is done you can ReCIF the changes and try again.

Abhi