What does an "Invalid UPC" message from Loblaw mean?

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I received an error message in my WebForms inbox from Loblaw that says "Invalid UPC." What does that mean and how can I fix this problem?
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Posted 7 years ago

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Andrew Richner

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This is an error generated in Loblaw's system regarding an issue with a line item you have sent to them recently in an Invoice EDI document. This error states that you have transmitted a UPC or EAN code which doesn't match any item that Loblaw has ordered. You will want to make sure that you sent the exact code that Loblaw communicated to you in the original Purchase Order. Adding or subtracting any numbers, symbols, or letters would cause the code you sent not to match the code on file at Loblaw. They need to have a match in order to validate your invoice against the order as it was entered into their system. If you do not have a UPC or EAN code for any item, you may want to contact Loblaw to obtain that information.

If you think you have correctly entered this information, you probably want to contact Loblaw to determine why the data that you transmitted does not match what they have in their database. When you are ready to re-send, you would follow the same procedure in WebForms as when you sent this document. However it's very important to note that your invoice will be always get rejected if it uses an Invoice number that Loblaw has already received, even if the first version was itself rejected. To avoid getting your invoice rejected again, we recommend adding a small letter "a" to the end of your invoice number so that you can use the same invoice number for your records but at the same time make it possible for Loblaw to accept the correction.

SPS Commerce has also created a guide to understand these types of messages from Loblaw. You can access it here:
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Jorge Cabral

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is there a contact number or email for Loblaws to correct a UPC?  The message we get from Loblaws does not provide us with the contact.
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Adam Lund, Employee

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Hello Jorge,

You can contact Loblaws at the following email:


Thank you for using Support Center!

Adam Lund 
SPS Commerce Infinite Retail Power