Cancel a Proposal

Casts a cancellation vote on an Approved proposal — a way to call off a transaction that was approved but not yet executed. Once cancellations reach the threshold, the proposal becomes Cancelled (terminal) and should be closed.

The signer must hold the Vote permission, and the proposal must currently be Approved. Unlike approve/reject, this instruction requires the System program account (it may grow the proposal to record the cancellation).

Program method — cancel_proposal

Signs with payer + signer, then sends.

Parameter	Type	Required	Default	Description
payer	Keypair	yes	—	Pays the fee; co-signs.
settings	#to_s	yes	—	The settings account address.
signer	#to_s · Keypair	yes	—	A Vote-holding member; must sign.
transaction_index	Integer	yes	—	Index of the proposal's transaction.
memo	String	no	nil	Optional indexing memo.

Plus the shared sign: / execute: controls and Solace::Transaction return — see Conventions.

program.cancel_proposal(
  payer:             member,
  settings:          identity.settings_address,
  signer:            member,
  transaction_index: 1
)

Composer — SquadsSmartAccountsCancelProposalComposer

Parameter	Type	Required	Default	Description
settings	#to_s	yes	—	The settings account address.
signer	#to_s · Keypair	yes	—	A Vote-holding member; must sign.
proposal	#to_s	yes	—	The Proposal PDA to cancel (must be Approved).
memo	String	no	nil	Indexing memo.

proposal, = program.get_proposal_address(
  settings_address:  identity.settings_address,
  transaction_index: 1
)

composer = Solace::Composers::SquadsSmartAccountsCancelProposalComposer.new(
  settings: identity.settings_address,
  signer:   member.address,
  proposal:
)

tx = Solace::TransactionComposer.new(connection:)
                                .add_instruction(composer)
                                .set_fee_payer(member)
                                .compose_transaction

tx.sign(member)
connection.send_transaction(tx.serialize)

Low-level instruction (advanced)

• Discriminator: [106, 74, 128, 146, 19, 65, 39, 23]
• Encodes (data): option_string(memo)

Parameter	Type	Required	Default	Description
memo	String, nil	yes	—	Indexing memo, or nil.
settings_index	Integer	yes	—	Index of the settings account.
signer_index	Integer	yes	—	Index of the voting signer.
proposal_index	Integer	yes	—	Index of the Proposal PDA.
system_program_index	Integer	yes	—	Index of the System program (required for cancel).
program_index	Integer	yes	—	Index of the Squads program.