Reuse answers at decision points

task brazil Updated Sep 10, 2026 1 min read map-inputs-in-decision-guidance-node.md
Raw file servicenow.com

Link inputs to reuse answers from prior nodes in Decision Tree Builder. For example, in a decision tree that deals with a loan application, you could reuse the input related to the customer’s salary at multiple decision points to determine the loan eligibility.

Before you begin

Role required: admin, sn_gd_core.decision_tree_author

About this task

Linked inputs can be used to create path conditions.

For more information about input mapping and exceptions related to input mapping, see Linking inputs in decision tree nodes.

Procedure

  1. Navigate to All > Guided Decisions > Decision Trees.

  2. Select the decision tree from the list.

  3. Select Open in Builder.

  4. In Decision Tree Builder, select the node you want to map inputs to.

Node type

Action

Question node

  1. Enter a question and select the type of answer.
  2. Select Link inputs to reuse prior data.
  3. Use the Link input icon ([Omitted image "icon-link-input.png"] Alt text: Link input icon) to select a prior node and an input that you want to reuse in this question. Note: The question with a reused answer is answered automatically during runtime.

Guidance node

  1. Select a guidance from the list.
  2. Select the Link input icon ([Omitted image "icon-link-input.png"] Alt text: Link input icon) to select a prior node and the input that you want to reuse in the guidance input.

Linking node

  1. Select a child tree from the list.
  2. Select the Link input icon ([Omitted image "icon-link-input.png"] Alt text: Link input icon) to select a prior node and the input that you want to reuse in the start node of the child tree.
5. Select **Save and close**.
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