SAP Note 21174 - Planning during forecast-based planning

Symptom:

Planning or planned independent requirements are not ignored during forecast-based planning, for example "VV".

Cause and prerequisites

It was defined this way since it is not clear what is to occur with the planning during the forecast.

Solution
If you want to ignore the planning, you can implement the following addition in program LM61XF36. However, you should consider that this is not a correction but a proposal for a modification which you need to implement again after a later upgrade.
LM61XF36
.
.
FORM SELECT_MDPB.
IF MDKP-DISVF EQ DISVFS. <- new
EXIT. <- new
ENDIF. <- new
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