When should I move from self-fulfillment to a 3PL?
When fulfillment is consuming time that is worth more elsewhere, when order volume outgrows the space you have, or when you need to ship from more than one region. Volume alone is a poor trigger; brands ship several thousand orders a month in-house profitably when the packing is simple and labor is available.
The clearer signals are structural: a retail account that demands compliant carton labelling and ASNs, a second node needed for transit times, or peak volume you cannot staff for without hiring you would then have to reverse.
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