Hi! How do I set up our ShipEngine Integration to pay Flat Rate?
We have it all synced up to ship USPS Priority but how do I tell the system within the Box ID that this is a flat Rate envelope?
Hi! How do I set up our ShipEngine Integration to pay Flat Rate?
We have it all synced up to ship USPS Priority but how do I tell the system within the Box ID that this is a flat Rate envelope?
I was able to figure it out by speaking with ship engine directly.The flat rate carrier package code is flat_rate_padded_envelope.
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