user7028: we faced the utxo failure issue
the error message is like
message: '"transaction submit error ShelleyTxValidationError ShelleyBasedEraAlonzo (ApplyTxError [UtxowFailure (WrappedShelleyEraFailure (UtxoFailure (FeeTooSmallUTxO (Coin 272465) (Coin 269165))))])"',
What is the problem?
We tested many times successfully but the error only occurred when it went to mainnet
Here is our policy id if anyone could help look into the transaction and find out what the problem is?
https://cardanoscan.io/tokenPolicy/2fd5b51792a29d9c0f77297a29bbc262de093b1072f2fc17ee048a81
There are just part of the transactions failed, we want to know why

user4627: The attached fee is too small. How are you creating your transactions? If you're using the cardano serialization lib (from here https://github.com/Emurgo/cardano-serialization-lib) and you're using the add_change_if_needed function, call it right before building the tx to make sure it adds the right fee.
Often times while testing you can have single pure Ada UTXOs as inputs and outputs and when you go live you can get fragmented multiple UTXOs to cover the required sum with various assets attached etc., which can cause the fee to vary depending on the total tx size. Depending on the coin selection strategy the mechanism for choosing UTXOs can be random, which is why it only sometimes occurs.

7028: <p>we faced the utxo failure issue</p>
<p>the error message is like
message: '&quot;transaction submit error ShelleyTxValidationError ShelleyBasedEraAlonzo (ApplyTxError [UtxowFailure (WrappedShelleyEraFailure (UtxoFailure (FeeTooSmallUTxO (Coin 272465) (Coin 269165))))])&quot;',</p>
<p>What is the problem?
We tested many times successfully but the error only occurred when it went to mainnet</p>
<p>Here is our policy id if anyone could help look into the transaction and find out what the problem is?
<a href="https://cardanoscan.io/tokenPolicy/2fd5b51792a29d9c0f77297a29bbc262de093b1072f2fc17ee048a81" rel="nofollow noreferrer">https://cardanoscan.io/tokenPolicy/2fd5b51792a29d9c0f77297a29bbc262de093b1072f2fc17ee048a81</a></p>
<p>There are just part of the transactions failed, we want to know why</p>
 4627: <p>The attached fee is too small. How are you creating your transactions? If you're using the cardano serialization lib <em>(from here <a href="https://github.com/Emurgo/cardano-serialization-lib" rel="nofollow noreferrer">https://github.com/Emurgo/cardano-serialization-lib</a>)</em> and you're using the <em>add_change_if_needed</em> function, call it right before building the tx to make sure it adds the right fee.</p>
<p>Often times while testing you can have single pure Ada UTXOs as inputs and outputs and when you go live you can get fragmented multiple UTXOs to cover the required sum with various assets attached etc., which can cause the fee to vary depending on the total tx size. Depending on the coin selection strategy the mechanism for choosing UTXOs can be random, which is why it only sometimes occurs.</p>
