Discussion
No Estimates For Shipping Method Reason: First Class mail must weigh 13 ounces or less
Explanation: The package is too heavy. If this is an error, please check the item configuration for each item in the package and review the weight for those items. One of the items might possibly be incorrectly configured.
Remediation Steps
Navigate to:
Home → Item Configuration → Items Section
Select the item you're troubleshooting.
Review the weight value for the item. Correct if necessary.