Hi.
One of the most common problems with ML active, is error message C+065. This means the Material Master (or Sales/Project Valuated Stock) has the field MLAST (Material Price Determination: Control) = blank.
Follow this instructions to face the problem:
1. Implement note 364368. This tcode activate the Material Ledger Help Desk.
2. run tcode MLHELP
3. Follow route: ML help for Master Data > MLHELP_MLMASTER_CREATE
4. Run this program in TEST mode in order to analyze the problem (the program is very short, so you can debug it in few minutes)
5.Post a OSS message in the Marketplace to report your problem according to note1511937 - C+065 or C+019 or Material Ledger flag is not set in the Material Master although the Material Ledger has been activated for the plant
Arturo.