Conditional logic - Tally Developer Docs

{
  "uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "type": "CONDITIONAL_LOGIC",
  "groupUuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "groupType": "CONDITIONAL_LOGIC",
  "payload": {
    "conditionals": [
      {
        "uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "type": "SINGLE",
        "payload": {
          "field": {
            "uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "blockGroupUuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "title": "<string>",
            "payload": {}
          },
          "value": "<string>"
        }
      }
    ],
    "actions": [
      {
        "uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "payload": {
          "jumpToPage": "<string>",
          "showBlocks": [
            "3c90c3cc-0d44-4b50-8888-8dd25736052a"
          ],
          "hideBlocks": [
            "3c90c3cc-0d44-4b50-8888-8dd25736052a"
          ],
          "requireAnswer": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
        }
      }
    ],
    "updateUuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}

Learn how to use conditional logic in your forms in our Help Center guide.

A block with type CONDITIONAL_LOGIC. Used for form branching logic.

uuid

string<uuid>

required

Unique identifier for this block.

type

enum<string>

required

Available options:

CONDITIONAL_LOGIC

groupUuid

string<uuid>

required

Groups related blocks together. For standalone blocks, use the block's own uuid. For child blocks (e.g., dropdown options, multiple choice options), use the parent block's uuid so all children share the same groupUuid.

groupType

enum<string>

required

Available options:

CONDITIONAL_LOGIC

payload

ConditionalLogicPayload · object

required

Payload for CONDITIONAL_LOGIC block type. Used for form logic and branching.

Show child attributes