Union officials are meeting Tesco management following a decision by the supermarket giant to cut more than 400 jobs at its Dundee distribution depot.
Dundee staff will have the opportunity to work elsewhere
Shop workers union Usdaw said it understood the retailer's decision to open a new facility in West Lothian.
But it said closure of the Dundee site would have "serious implications" for the workers.
Tesco said the move was needed as existing Scottish depots were not large enough to meet customer demand.
The depot will be closed along with another in Livingston before the new £75m facility opens in Livingston in the summer of 2007, employing about 1,400 workers.
A total of 432 staff are employed at the Dundee depot and 768 in Livingston.
Usdaw national officer Pauline Foulkes welcomed Tesco's plans for Livingston, which she said would bring long-term job security as well as new opportunities.
However she added: "We are very mindful that the closure of the Dundee site will have serious implications for our members and this will be a very worrying time for them.
"We welcome Tesco's clear commitment to redeploy staff and we will do everything we can to find these hard working and experienced workers new opportunities within the company or elsewhere in the retail sector.
"If our members are made redundant then we will make sure they will get the very best financial package possible and our continued support to find new jobs."
Staff at Livingston and Dundee will have the opportunity to transfer to the new depot or other jobs elsewhere in the company.
Tesco, which employs more than 22,000 people in Scotland, said the capacity problems at its depots meant many products currently heading for its 90-plus Scottish stores had to be driven over the border.