PUT /transfers/{id}
Only valid while state === "awaiting_funds". Mutable fields: client_reference_id, return_instructions. Attempting to change amount, source, or destination after creation returns 422 immutable_field.
Response
Returns the updated transfer object.
curl -X PUT "$BASE_URL/transfers/tx_01HZ…" \
-H "Api-Key: $SEISMIC_ORCHESTRATION_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"client_reference_id": "order_9af2_retry"
}'