# Best Practices ## **Set Up Your Contact List** You can upload all the phone number leads that you have and set that as a contact list within your Marketing Engine. You can add them individually as well and will be saved in your dashboard. ## **Signup Forms to Gather More Contacts** More leads are always good, so we recommend you have a signup form where visitors can submit their phone numbers. By putting in their phone numbers, you’ll have permission from them to send them SMS/MMS. This will increase the breadth and volume of your campaigns, leading to more success. The gravity of this setup is such that it warrants a section of its own. Regulations are there across the US, Canada & India which requires certain kinds of adaptation. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.satisfilabs.com/resource-center/marketing-engine/campaigns/messaging-campaigns/best-practices.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.