SAP Message 61514 - Number range & for object &2 exhausted

Diagnosis
The number range was not correctly reorganized. Now, no more numbers inthis number range are free.

Procedure
Check number range &V1& for number range object &V2& in Customizing andreorganize it. If you do not have the necessary authorization to dothis, please notify your systems administration.
Please refer to the following list to see for which MRP element youhave to reorganize the number range:
Number range object,,MRP element
PLAF,,Planned order (operative or simulative)
EBAN,,Purchase requisition
RESB,,Dependent requirements
MDSM,,Simulative dependentr requirements (long-term planning)
MDTB,,MRP list