# Useful Links

<table><thead><tr><th width="269">Link</th><th>Remarks</th></tr></thead><tbody><tr><td><a href="https://form.gov.sg/657025a2d2bd350012c82eb0">BTN Contact Us Form</a></td><td>General enquiries related to BTN</td></tr><tr><td><a href="https://form.gov.sg/65a62a71f2138c001218d4e7">SFTP Application Form for Postman (BTN)</a></td><td>Interest form to use SFTP for Postman test site<br>*note that Production site is not up at the moment</td></tr><tr><td><a href="https://form.gov.sg/65a78789a82e8aa7662f25b1">Campaign Creation Access</a></td><td><strong>Only</strong> for agency PICs to submit</td></tr><tr><td><a href="https://message-segment-calculator.postman.gov.sg/"><strong>(NEW)</strong> Postman Message Segment Calculator</a></td><td>Postman's message segment calculator</td></tr><tr><td><a href="https://cal.gov.sg/n2g21zn65d6nr2pd80cd051p">E2E Load Test Booking</a></td><td>Book a time slot for your TPS load test </td></tr><tr><td><a href="https://form.gov.sg/65953383e41b750012808d83">Postman API Integration Test</a></td><td>For agency users/vendors to submit before using Postman v2 Production Site</td></tr><tr><td><a href="https://form.gov.sg/65f17fe71b019bf7b55179d5">Postman SFTP Integration Test</a></td><td>For agency users/vendors <strong>using SFTP</strong> to submit before using Postman v2 Production Site</td></tr><tr><td><a href="https://docs.developer.tech.gov.sg/docs/postman-sgdp-guide/">Postman Policy Guide</a></td><td>Please log in with your TechPass/agency email address to view our policy guide.</td></tr></tbody></table>