-ve price change in Moving average Price of Material in Material Master.

Question

Dear All,
Kindly guide on below issue.
We have a Material e.g A which stock was available in System let us say 10 qty & the Price per unit was Rs.10. But in last August some users chagned the price to Rs.5 because of whcih the Valuation in previous period has become negative.
Now I have to rectify this. Now please tell me how can I do so.
Also Note: there are sevral other Movements have happened since then i.e. GR, IR, Consumption for Production etc.
This is very important.
Regards,

Answer 1

For negative MAP , there are steps which are given in SAP note 356757. Follow this steps to overcome this issue.
The notes goes as...
Summary
Symptom
When you try to post an invoice for the purchase order, the system generates error message M8783: 'Moving average price for material & & & is negative'.
Additional key words
MRHR, MR1M, MIRO, MMVAL, M8783
Cause and prerequisites
You posted a valuated goods receipt for a purchasing document for a material with moving average price control.When the invoice was posted (invoice item with price variance for goods receipt), the system generates error message M8783: 'Moving average price for material & & & is negative'.
Between the posting of the original goods receipt and the entry of the invoice, the system already posted additional valuation-relevant transactions/events (goods movements, invoices and so on, can be displayed with Transaction MR51).
The invoice verification tries (for stock coverage) to credit/subsequently debit the difference between the value of goods received and invoice item value for the stock.However, the material total value must not become negative by this stock posting.
Solution
Before you post the invoice, you must first increase the stock value.
The amount by which the stock value must be increased at least can be calculated from the following values:
1. Transaction MM03, accounting view material master, field 'Total value' (MBEW-SALK3)
2. Invoice item value according to invoice
3. In the invoice verification (Transaction MR01, MR1M, MIRO), change the invoice item amount to a value which is high enough and simulate the invoice to receive the value which would be posted for this item to the GR/IR account.
In the invoice verification, the value (3) minus (2) is posted to stock. It must be larger than (1).Post a subsequent debit with the amount (3) + (1) - (2) for the affected material/plant (Transaction MR22).
You can post the invoice afterwards.