How to solve the “Transaction too large” Error

Chris
Commercium Guides
Published in
3 min readSep 8, 2018

This guide will help you understand and solve the “Transaction too large” Error

If you have mined for several days, weeks and months to the same wallet address (or oif you wanted to send your whole CMM balance at once to an exchange or to another wallet), you may have encountered the following error window:

The reason for this error message isn´t some kind of flaw in the wallet or bad coding, rather a protection of the blockchain from a transaction that is pages and pages long.

There are at least three reasons a transaction may be too large:

  1. A large number of transparent outputs - caused by a large number of recipients
  2. A large number of transparent inputs - caused by a large amount of transparent value
  3. Many JoinSplits (shielded ZEC transfers) - caused by a large amount of shielded value

Option 1

Currently the best workaround for this issue is to use multiple transactions with smaller values (or fewer recipients).

Every time you enter a number into the Amount tab, it shows you , how many bytes will be used for the specific transaction.

To avoid the error message and don´t trigger the inbuilt protection, you may use a transaction size beneath 100.000 bytes.

This is a known usability problem that we’re working on several fixes for.

Option 2

You can use the web wallet for mining and every certain amount of days or weeks, transfer the mined coins to your windows wallet to prevent multiple transactions and the transaction too large issue.
Make sure to save the private key and the passphrase of the web wallet.

Option 3

Some pools have a system in place, where you can set your own payout amount. We would strongly advise you to set the payment value as high as possible (Payout only once/twice per day).

The CMM Support team can be found on Discord (here) so if you have any further questions about this specific error, come find us in the #helpdesk channel. We are a very friendly bunch and we are helpful too! 😃

If you found this guide helpful please give us a 👏 or drop us a comment below.

Website: https://www.commercium.net/

Facebook: https://facebook.com/CMMBlockchain

Twitter: https://twitter.com/CMMBlockchain

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