How to Collect Missing Parameters from User Step by Step in a Flow

[PavelKonanTM]

Question:
I want to create a flow that requires 5 parameters from the user. Sometimes the user provides only 2 parameters at the beginning. In that case, I need the flow to detect which parameters are missing and then ask the user for the missing ones one by one until all 5 are collected.

What is the best approach to structure this logic so the flow can:

• Store already provided parameters,
• Identify which ones are missing,
• Ask for them step by step,
• And only proceed once all required parameters are collected?