B737-700
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Communication Breakdown
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance
Aircraft Equipment Problem Dissipated; Flight Crew Overcame Equipment Problem
Procedure; Human Factors
While at cruise en route to ZZZ; we received a TO Data Available message via ACARS. Shortly after; Dispatch notified us that the HAZMAT we had onboard (we had proper paperwork for the HAZMAT) was not included in the Zero Fuel Weight (ZFW) calculations. We reviewed the new Takeoff Data for the correct ZFW and made the adjustment to the FMC; and calculated new landing data for that weight. The rest of the flight proceeded as normal.
B737-700 Captain reported Dispatch notification during cruise stating Hazmat cargo weight not included in the aircraft Weight & Balance data. Weight & Balance data corrected and flight continued.