> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hedera.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Network Response Messages

<table><thead><tr><th>Network Response</th><th>Description</th></tr></thead><tbody><tr><td><code>INVALID\_SCHEDULE\_ID</code></td><td>The Scheduled entity does not exist; or has now expired, been deleted, or been executed</td></tr><tr><td><code>SCHEDULE\_IS\_IMMUTABLE</code></td><td>The Scheduled entity cannot be modified. Admin key was not set during the creation of the Scheduled entity.</td></tr><tr><td><code>INVALID\_SCHEDULE\_PAYER\_ID</code></td><td>The provided Scheduled Payer does not exist</td></tr><tr><td><code>INVALID\_SCHEDULE\_ACCOUNT\_ID</code></td><td>The Schedule Create Transaction TransactionID account does not exist</td></tr><tr><td><code>NO\_NEW\_VALID\_SIGNATURES</code></td><td>The provided sig map did not contain any new valid signatures from required signers of the scheduled transaction</td></tr><tr><td><code>UNRESOLVABLE\_REQUIRED\_SIGNERS</code></td><td>The required signers for a scheduled transaction cannot be resolved, for example because they do not exist or have been deleted</td></tr><tr><td><code>UNPARSEABLE\_SCHEDULED\_TRANSACTION</code></td><td>The bytes allegedly representing a transaction to be scheduled could not be parsed</td></tr><tr><td><code>UNSCHEDULABLE\_TRANSACTION</code></td><td>ScheduleCreate and ScheduleSign transactions cannot be scheduled</td></tr><tr><td><code>SOME\_SIGNATURES\_WERE\_INVALID</code></td><td>At least one of the signatures in the provided sig map did not represent a valid signature for any required signer</td></tr><tr><td><code>TRANSACTION\_ID\_FIELD\_NOT\_ALLOWED</code></td><td>The scheduled and nonce fields in the TransactionID may not be set in a top-level transaction</td></tr><tr><td><code>IDENTICAL\_SCHEDULE\_ALREADY\_CREATED</code></td><td>A schedule already exists with the same identifying fields of an attempted ScheduleCreate (that is, all fields other than scheduledPayerAccountID)</td></tr><tr><td><code>SCHEDULE\_ALREADY\_DELETED</code></td><td>A schedule being signed or deleted has already been deleted</td></tr><tr><td><code>SCHEDULE\_PENDING\_EXPIRATION</code></td><td>A schedule being signed or deleted has passed it's expiration date and is pending execution if needed and then expiration</td></tr><tr><td><code>SCHEDULE\_FUTURE\_GAS\_LIMIT\_EXCEEDED</code></td><td>The scheduled transaction could not be created because it would cause the gas limit to be violated on the specified expiration time</td></tr><tr><td><code>SCHEDULE\_FUTURE\_THROTTLE\_EXCEEDED</code></td><td>The scheduled transaction could not be created because it would cause throttles to be violated on the specified expiration time</td></tr><tr><td><code>SCHEDULE\_EXPIRATION\_TIME\_MUST\_BE\_HIGHER\_THAN\_CONSENSUS\_TIME</code></td><td>The scheduled transaction could not be created because it's expiration\_time was less than or equal to the consensus time</td></tr><tr><td><code>SCHEDULE\_EXPIRATION\_TIME\_TOO\_FAR\_IN\_FUTURE</code></td><td>The scheduled transaction could not be created because it's expiration time was too far in the future</td></tr><tr><td><code>SCHEDULE\_EXPIRY\_MUST\_BE\_FUTURE</code></td><td>A scheduled transaction configured to wait for expiry to execute was given an expiry time not strictly after the time at which its creation reached consensus</td></tr><tr><td><code>SCHEDULE\_EXPIRY\_TOO\_LONG</code></td><td>A scheduled transaction configured to wait for expiry to execute was given an expiry time too far into the future after the time which its creation reached consensus </td></tr><tr><td><code>SCHEDULE\_EXPIRY\_IS\_BUSY</code></td><td>A scheduled transaction configured to wait for expiry to execute was given at a time which there is already too many transactions scheduled to expire; its creation must be retried with a different expiry time</td></tr></tbody></table>