Name the recurring task
Describe the actual task in a short sentence: receiving project enquiries, keeping contact contexts apart or another legitimate purpose. This gives you something concrete to compare with a service description. Avoid starting with an attractive feature list and finding a reason to use it afterwards.
Think about availability
Consider when messages would be checked and which device or account provides access. A service description may identify supported delivery routes without promising that you will notice every message. Match the practical routine to the importance of the conversation. If the use involves an account security feature, read that platform’s instructions directly.
Keep expectations proportionate
Another number can change how contact is organised, but it does not by itself establish privacy, identity or reliability. Those questions depend on access controls, provider terms and the wider context. A clear agreement about response times may sometimes address a communication problem without requiring another technical arrangement.
Review when the purpose changes
A short project can become ongoing, or a personal route can begin serving a group. Revisit the terms when the purpose changes. The assumptions behind an earlier decision may no longer fit. Keep the review focused on actual needs and unanswered conditions rather than treating the original choice as permanent.