Labour says a project which is a cornerstone for the World War I centenary commemorations is in jeopardy of not being completed in time.
The Government announced in August that the diaries and service records of veterans would be made searchable online.
However, in December, it revealed that a larger digital archive programme had been canned.
Labour spopkesperson Grant Robertson said that as a result, faster software to make records available online is no longer being developed.
He said that means the records of New Zealanders who fought in World War I are unlikely to be searchable online by the time centenary commemorations start in August.
Mr Robertson said it's hugely disappointing that this bungle has put the project at risk.