- You want to know more about the project information database, about value categories and value category customizing.
- You want to know, why it is inevitable to maintain the value category customizing correctly and completely.
- You do not know, why the value category customizing is necessary at all.
- You want to know, what this customizing is for and why a support consultant or developer has asked you to review/maintain your value category customizing.
- You want to know which are the guiding priciples for value category customizing.
Project Information Database, CJEN, OPI1, OPI4, OPI5, RPSCO, RPSQT
https://service.sap.com/sap/support/notes/676123 (SAP Service marketplace login required)