Material ledger activation for new plants

[Former Member]

HI Experts,

Can you please help me?

We use activated material ledger in our production system. I've done new plants and also activated material ledger for them. After that I received the message C+039 "Material ledger currencies were changed" in transaction mm02.

I've read that we should deactivate material ledger for all plants and then make settings, after that we should activate it again. But it is written in Sap note 425487 that after deactivation

• Prices and inventory values in parallel currencies and their histories are lost.
• The parallel currency records of the purchase order history are deleted. In the case of a new material ledger production startup, the original values cannot be recovered.

Am I right that even if I activate material ledger again history before new activation in other currency will be lost? If I'm not right please correct me. Is there any other variants how not to lose all important information?

[Former Member]

The problem is solved!

[Former Member]

We added new company codes with new currencies and new plants. As it turned out we  had to create and assign the new material ledger type to every new plant and not to use the material ledger type of old plants. Of course after activating of material ledger no any changes we could do in test system, only in another test system. That's why you should be carefull and make following steps:

1. SPRO - activate material ledger for new plants

2. SPRO - create new material ledger type

3. SPRO - assign new plant to new material ledger type

4. CKMSTART - set valuation area as productive for new plants

5. CKMADJUST - reconsilation of material subledger and general ledger