In flight failure of 1 pump is not a problem you can continue.
NEXT dispatch will require 2000kg extra and 1% more burn as spannersatcx says above.
No need to divert and you can depart the next port.
According to my FCOM the Status page will show in flight:--
If the 2 main pumps of the same side are inoperative then L (R) INR TK: 2T unusable
and
INOP SYS
Fuel AFT TFR
L (R) Fuel pump 1 (2)
No biggy.