Hi there! We're hitting a consistent internal_server_error (HTTP 500) when creating a Box Sign request via the API.
Setup: JWT Server Authentication app, App + Enterprise Access, "Manage signature requests" scope enabled, "Make API calls using the As-User header" enabled and re-authorized. We're impersonating the human user (ID [removed by moderator] ) who owns the Box Sign template, since our service account can list templates via GET /sign_templates but can't use them directly in POST /sign_requests (a limitation we confirmed with your community team).
The problem: Under impersonation, POST /sign_requests takes ~55–60 seconds and then returns internal_server_error. We've reproduced this three times, varying the template and the payload each time, and it doesn't seem related to our request content.
Request IDs:
0b9355de83cd15cef04504510a7f614650a9813c0d687102d871cee0e92f1189ce0668ad87c76e7d1b208840e67d0c13163(bare payload, no prefill_tags — most useful for isolating the cause)
The template works fine when used manually through the Box Sign web UI as the owning user, and every other API call we've tested (listing templates, generic folder operations) works correctly and quickly.
Could someone look up these request IDs and let us know what's actually failing server-side? Happy to provide more repro attempts if useful.
Thanks,
Omar