Suggestions :
System has the provision to do the complete amount of IBCA payable of the Receipt voucher. Once the Purchase voucher reference is entered/ selected then the pending amount of the voucher gets populated which can be transferred to the other branch.
The System will show ‘VTINBALAMT’, ‘Invalid Balance Amt’,’ Adjusted Amt is Greater than Balance Amt’ when the users enter the amount of voucher that is greater than the voucher balance amount.
However it is recommended / suggested to move the whole amount then use partly there and then request to send back to the origin site.