diff --git a/.changeset/2003-lead-case-empty-groups.md b/.changeset/2003-lead-case-empty-groups.md
new file mode 100644
index 00000000..ea1a341a
--- /dev/null
+++ b/.changeset/2003-lead-case-empty-groups.md
@@ -0,0 +1,24 @@
+---
+'hotcrm': patch
+---
+
+A lead's and a case's Details tab now keep the sections you are expected to fill on screen while they are empty
+
+A section with nothing filled in used to disappear from the Details tab. On a
+new lead that carries only its required fields, that hid Contact Information,
+Address and Additional Info, so there was no place to see, or fill in, the
+lead's **Mobile**, **Website**, **Address**, **Annual Revenue**, **Number of
+Employees**, **Description** or **Notes**. On a new case it hid Origin &
+Routing, and with it **Case Origin**.
+
+These four sections now always show, with an empty row for each field. Address
+and Additional Info still start collapsed: click the heading to open them. A
+section that has at least one value looks the same as before, with its empty
+fields behind **Show N empty fields**. The opportunity page already worked this
+way.
+
+Sections that are filled in later, or by the app, still appear only once they
+hold a value. On a lead that is Duplicate Management, which the duplicate check
+fills in. On a case it is SLA & Priority, whose dates are recorded for you, and
+Resolution, which **Close Case** records. Assignment is unchanged: the lead
+owner is shown in the strip at the top of the page.
diff --git a/src/sales/pages/lead_detail.page.ts b/src/sales/pages/lead_detail.page.ts
index 447f47a7..e45cd08b 100644
--- a/src/sales/pages/lead_detail.page.ts
+++ b/src/sales/pages/lead_detail.page.ts
@@ -378,23 +378,36 @@ export const LeadDetailPage: Page = {
                       //   - it lays out its own column count (the page-level
                       //     `columns` above does not reach it);
                       //   - a group whose members are all empty renders nothing
-                      //     (`address` on a lead with no address);
+                      //     (`duplicates` on a clean lead), unless the section
+                      //     says `hideEmpty: false`;
                       //   - members the highlights strip registered are dropped,
                       //     so `assignment` (only `owner_id`) renders nothing on
                       //     this page — the owner is in the strip;
                       //   - a group declared `collapse: 'collapsed'` starts
                       //     collapsed; changing that is a `fieldGroups` decision
                       //     in lead.object.ts, not a key on this page.
+                      //
+                      // `hideEmpty: false` (#2003, the #1211 reasoning) sits on
+                      // the groups whose every member a rep types and the
+                      // create form asks for: `contact_info` (`mobile` and
+                      // `website` once the strip takes `email` and `phone`),
+                      // `address`, and `additional` (revenue, headcount,
+                      // description, notes). Without it all three vanish on a
+                      // fresh lead, so a rep cannot see what is left to fill.
+                      // Not on `assignment`: its derived list is empty, and the
+                      // renderer draws nothing for an empty list whatever
+                      // `hideEmpty` says. Not on `duplicates`: the
+                      // `lead_duplicate_check` hook writes it.
                       sections: [
                         { group: 'identity' },
                         { group: 'company_info' },
-                        { group: 'contact_info' },
+                        { group: 'contact_info', hideEmpty: false },
                         // Do Not Call / Email Opt Out, right under the numbers
                         // a rep is about to dial (#806).
                         { group: 'preferences' },
                         { group: 'qualification' },
                         { group: 'assignment' },
-                        { group: 'address' },
+                        { group: 'address', hideEmpty: false },
                         { group: 'conversion' },
                         // The LINK half of the duplicate banners (#1207): the
                         // group carries both survivor lookups, because
@@ -405,7 +418,7 @@ export const LeadDetailPage: Page = {
                         { group: 'duplicates' },
                         // Description and Notes — kept last, where the page's
                         // Description section always sat.
-                        { group: 'additional' },
+                        { group: 'additional', hideEmpty: false },
                       ],
                     },
                   },
diff --git a/src/service/pages/case_detail.page.ts b/src/service/pages/case_detail.page.ts
index 68165b08..8d73fa80 100644
--- a/src/service/pages/case_detail.page.ts
+++ b/src/service/pages/case_detail.page.ts
@@ -165,9 +165,18 @@ export const CaseDetailPage: Page = {
                       // `resolution` / `resolved_by_article` render once the case
                       // carries one; `close_case` is the flow that collects the
                       // resolution.
+                      //
+                      // `hideEmpty: false` (#2003, the #1211 reasoning) only on
+                      // `origin`: with `owner_id` in the strip, its one member is
+                      // the channel an agent picks, and without the key the
+                      // section vanishes on a new case. Not on `sla`: outside
+                      // the strip its members are stamps no one types
+                      // (`closed_date` and `resolution_time_hours` at close,
+                      // `first_response_date` by `event.hook.ts`), so the key
+                      // would draw empty rows to look at, not to fill.
                       sections: [
                         { group: 'basic' },
-                        { group: 'origin' },
+                        { group: 'origin', hideEmpty: false },
                         { group: 'sla' },
                         { group: 'escalation' },
                         { group: 'resolution' },