Find out what they want to achieve
Customers ask whether you integrate with a tool when they mean they want data to flow somewhere. Ask what they want to happen, then answer that.
Check before you say yes
Look at the integration's documentation or ask the person who built it. Do not promise from memory. Confirm what data moves, in which direction and how often.
Answer with the limits included
Say what works, what does not and any plan or permission they need. A partial yes stated clearly is better than a full yes discovered later.
Point to the setup steps
Link the guide for the integration and name the first step. For tricky ones, offer to check their setup once they have tried it.
Offer a workaround where there is one
If there is no direct integration, mention an export, an API or an automation tool that can bridge the gap, and be clear about what is unsupported.
Log the gap
Tag requests for integrations you do not have, with the tool name. The count tells you which ones to build or document first.