SAP_pp_019 heuristics creates automatic fixed pegging relation ship .generally we have automatic fixed pegging and manual fixed pegging

Question

SAP_pp_019 heuristics creates automatic fixed pegging  relation ship  .generally we have automatic fixed pegging and manual fixed pegging .
Example :
1) created sale order and triggered GATP
2)It calls CTP where SAP_PP_019 is run and coresponding planning takes place and pegging relation ship are generated in product view
3)when I Trigger Gatp to  same sales order .why the pegging losses as it is fixed pegging so it should not break while converting to production order ?????
please correct if am wrong in any of 3 steps
Thanks & Regards
Virender

Answer 1

Virender,
Expert Pravin has answered your question about Planning Procedures
I will make two small comments.  In my CTP experience, I have never seen anyone use the SAP_PP_019 heuristic as a CTP heuristic.  019 is a pegging heuristic, and typically CTP uses some type of material planning heuristic (e.g. create supply elements).  I am not saying that your heuristic is wrong, I am only saying that I have never seen it used in such a way.
I have further never seen an implementation for CTP where there were more than 2 different planning procedures in use.
You did not ask for it, but let me give you a small piece of advice.  CTP and multilevel planning are not simple or trivial subjects.  From your responses about planning procedures, I will draw the conclusion that your experience in this area is...somewhat limited.
Yes, you can go to SCN and ask for advice, and we will offer whatever help we can.  However, the detailed troubleshooting techniques required to solve such a problem are not really suited to SCN postings.  There are already 30 items in this post, and the end does not seem to be in sight.
If I were in the position of being responsible for solving this problem, and I had little experience to bring to bear, and there was no documentation which described the original solution in detail, then I would request local expert assistance to help me in this matter.  If such assistance were not to be available, I would further request my management to engage an external resource to assist; one who has extensive experience in customized CTP solutions. A competent CTP expert can probably zero in on the problem in a few days.  
Using only yourself and SCN as a resource, you may find a solution to your problem tomorrow, or you may not find it after months of searching.  In most businesses I have worked with, this level of uncertainty would be considered unacceptable.
Good Luck & Best Regards,
DB49