A CTA is guiding a client through the final step of planning a ServiceNow integration. What critical aspect should the CTA prioritize when gathering technical details?

When gathering technical details for an integration, the foundational requirement is to ensure systems can communicate. This involves assessing network topology, firewall rules, required ports, authentication methods (e.g., OAuth, Basic Auth), and protocols (e.g., HTTPS, SOAP, REST). Without establishing this baseline connectivity, no data can be exchanged, rendering all other planning aspects moot. This step is critical for identifying potential blockers and defining the technical prerequisites for the integration to function.

B. Determining the color scheme for integration UI: This is a user interface consideration, not a core technical detail for the integration's backend functionality.
C. Planning the communication for the integration go-live: This is a project management and change management task, not part of the technical detail gathering for the integration's build.
D. Estimating the projected integration data metrics: While important for performance and value measurement, this is a secondary step that follows establishing the fundamental technical connectivity.

1. ServiceNow Product Documentation. "Integration planning checklist". This guide outlines key considerations, with network connectivity and security being primary technical items. See the "Technical requirements" section.

2. ServiceNow Now Create Methodology. "Integration Design" deliverable template. The template explicitly requires sections for "Network Connectivity," "Authentication," and "Protocols," highlighting them as essential technical details to be gathered during the design phase.