Diagnosis
You have entered a JV master data profile, in which a venture class isdefined. The venture class determines the number range interval (valuerange) for the venture name.
The venture name that you have entered does not lie in this number rangeinterval.

Procedure
Enter a valid venture name.
If you do not know the number range interval for the venture name, firstcheck the settings in Customizing for Joint Venture Accountingfor the venture class and number range interval, and in Customizing forJoint Venture Accounting by choosing Project Risk Managementfor Plant Engineering and Construction -> Master Data for JointVenture Processing, the JV master data profile.