Understand the meaning of the Offer End Date has Passed error.
Walmart has an internal End Date field. In order to avoid the Offer End Date has Passed error, Listing Mirror automatically sends an end date of 01-01-2049.
Sometimes it can take Walmart longer than expected to process and apply this data. But when they do, the error should disappear.
However, if the error isn't gone after 48 hours, please contact our technical support team for assistance.