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MRP - not deleted requriements

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I am a bit lost regarding this MRP issue.

I have two materials A and B. A is subcontracted material and B is its component.

Requirements for B should be equal to A.

When I run MRP in various settings, for three weeks some old reservations are not deleted. This cause that e.g for A is 10 reqs and for B 20reqs. In other weeks it is correct. It seems to me that MRP for some reason did not touch the old requirements.

I have been going through standard MRP tables but could not find anything strange.

Thank u.

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Active Participant
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Hi ,

Check below OSS details some Note can help you.