Morrison reported sales growth during the first quarter despite growing Brexit uncertainty.
Like-for-like sales were up by 2.3% during the 13 weeks to 5 May, excluding fuel.
Morrisons blamed “political and economic uncertainty” that is affecting consumer confidence, despite the extension to Article 50.
Sales growth in retail contributed only 0.2% of the overall figure, and the wholesale business accounted for the remaining 2.1%.
The supermarket announced they are to suspend part of their partnership with Ocado, part of a change agreement Morrison’s will hand back 30% share of Ocado’s fulfilment centre in London.
Chief executive David Potts said: “Our new agreement allows us to have more than one digital partner, and opens the way for significant potential opportunities and partnerships in this important growth area for Morrisons.”