Workers at Dunnes Stores in Gorey, County Wexford, are turning up for work this morning, despite the closure of the retail outlet on Thursday.
Dunnes Stores has been accused of using the outcome of a court injunction to close the store without notice or explanation to staff or customers.
More than 110 staff were left in limbo when the shop closed without notice on Thursday night.
The trade union Mandate condemned the move after what it described as a "petty dispute".