Once you submit your tracking information, there is very little time to make changes due to how quickly that information is transmitted to Kroger. There is typically a few minutes after you submit a shipment, where the status of the shipment is Processing, where you can modify the data.
Find the shipment in the Portal, view it and select Change Status under the More Actions drop down. Change the status to Draft, so you can modify and then submit it with corrections.
Keep in mind our system will only let you edit before the status of the shipment goes to Complete. After the shipment has gone to Complete, the only option is to contact Kroger with the updated information.