A handoff is complete when the receiving role can act, not merely when the sending role presses a button. Mapping it this way reveals information that a feature checklist misses.
Record both sides of the transfer
For each handoff, write the sending role, receiving role, record transferred and condition for acceptance. Ask what the recipient does when the information is incomplete.
A submitted request may still require clarification. If the tool marks it as accepted immediately, the apparent progress hides work that continues in messages.
Identify the evidence of acceptance
Decide how the sender knows the recipient has taken responsibility. This can be a state change, assigned task or recorded acknowledgment, depending on the process. Avoid notifications that announce activity without establishing ownership.
Track one normal item and one returned item through the map. Include the correction loop, not just the forward path.
Use the map in a product evaluation
Ask a vendor or prototype to demonstrate those same items. Check whether the needed states and rejection reasons are supported without side files.
A suitable tool may already exist. The purpose of the map is to make the fit observable, not to justify a predetermined custom build. Read the custom software decision checklist for comparing the alternatives.