Error when Sales Update

Dear All
I Have error when do Sales Update

Can somebody help me for explain it and how to resolve it

Error: Invoice Date Cannot Vary
===============================

Informational: Call From : JUNED
Contact :
Phone Number :
Tickler Date : 03/20/2013
Subject : Error: Invoice Date Cannot Vary
CAUSE . . . . The Invoice Date must be the same value for all lines or
pay items within the same transaction.
RESOLUTION. . Enter the same Invoice Date in all lines or pay items in the
transaction.



Error: Subledger 00000111A Invalid
===============================

Informational: Call From : JUNED
Contact :
Phone Number :
Tickler Date : 03/20/2013
Subject :
The subledger entered must exist as a record in the proper file indicated by the