diff --git a/docs/api-generated/cases/case-apis-passthru.asciidoc b/docs/api-generated/cases/case-apis-passthru.asciidoc
index ebee51dab6d8d4..16394ac263ceec 100644
--- a/docs/api-generated/cases/case-apis-passthru.asciidoc
+++ b/docs/api-generated/cases/case-apis-passthru.asciidoc
@@ -48,7 +48,7 @@ Any modifications made to this file will be overwritten.
     <a class="up" href="#__Methods">Up</a>
     <pre class="post"><code class="huge"><span class="http-method">post</span> /s/{spaceId}/api/cases/{caseId}/comments</code></pre></div>
     <div class="method-summary">Adds a comment or alert to a case. (<span class="nickname">addCaseComment</span>)</div>
-    <div class="method-notes">You must have <code>all</code> privileges for the <strong>Cases</strong> feature in the <strong>Management</strong>, <strong>Observability</strong>, or <strong>Security</strong> section of the Kibana feature privileges, depending on the owner of the case you're creating.</div>
+    <div class="method-notes">You must have <code>all</code> privileges for the <strong>Cases</strong> feature in the <strong>Management</strong>, <strong>Observability</strong>, or <strong>Security</strong> section of the Kibana feature privileges, depending on the owner of the case you're creating. NOTE: Each case can have a maximum of 1,000 alerts.</div>
 
     <h3 class="field-label">Path parameters</h3>
     <div class="field-items">
diff --git a/docs/api/cases/cases-api-add-comment.asciidoc b/docs/api/cases/cases-api-add-comment.asciidoc
index ea2c54cb49f1d8..48c3ffb5845b82 100644
--- a/docs/api/cases/cases-api-add-comment.asciidoc
+++ b/docs/api/cases/cases-api-add-comment.asciidoc
@@ -25,6 +25,10 @@ You must have `all` privileges for the *Cases* feature in the *Management*,
 <<kibana-feature-privileges,{kib} feature privileges>>, depending on the
 `owner` of the case you're updating.
 
+=== {api-description-title}
+
+NOTE: Each case can have a maximum of 1,000 alerts.
+
 === {api-path-parms-title}
 
 `<case_id>`::
diff --git a/x-pack/plugins/cases/docs/openapi/bundled.json b/x-pack/plugins/cases/docs/openapi/bundled.json
index a03ce2348d033e..532368176eefcf 100644
--- a/x-pack/plugins/cases/docs/openapi/bundled.json
+++ b/x-pack/plugins/cases/docs/openapi/bundled.json
@@ -1477,7 +1477,7 @@
       "post": {
         "summary": "Adds a comment or alert to a case.",
         "operationId": "addCaseComment",
-        "description": "You must have `all` privileges for the **Cases** feature in the **Management**, **Observability**, or **Security** section of the Kibana feature privileges, depending on the owner of the case you're creating.\n",
+        "description": "You must have `all` privileges for the **Cases** feature in the **Management**, **Observability**, or **Security** section of the Kibana feature privileges, depending on the owner of the case you're creating. NOTE: Each case can have a maximum of 1,000 alerts.\n",
         "tags": [
           "cases"
         ],
diff --git a/x-pack/plugins/cases/docs/openapi/bundled.yaml b/x-pack/plugins/cases/docs/openapi/bundled.yaml
index 70fa0dba5caebe..69959582c92249 100644
--- a/x-pack/plugins/cases/docs/openapi/bundled.yaml
+++ b/x-pack/plugins/cases/docs/openapi/bundled.yaml
@@ -948,7 +948,7 @@ paths:
       summary: Adds a comment or alert to a case.
       operationId: addCaseComment
       description: |
-        You must have `all` privileges for the **Cases** feature in the **Management**, **Observability**, or **Security** section of the Kibana feature privileges, depending on the owner of the case you're creating.
+        You must have `all` privileges for the **Cases** feature in the **Management**, **Observability**, or **Security** section of the Kibana feature privileges, depending on the owner of the case you're creating. NOTE: Each case can have a maximum of 1,000 alerts.
       tags:
         - cases
       parameters:
diff --git a/x-pack/plugins/cases/docs/openapi/paths/s@{spaceid}@api@cases@{caseid}@comments.yaml b/x-pack/plugins/cases/docs/openapi/paths/s@{spaceid}@api@cases@{caseid}@comments.yaml
index 2246ff1d16a9d4..25d119bd613c76 100644
--- a/x-pack/plugins/cases/docs/openapi/paths/s@{spaceid}@api@cases@{caseid}@comments.yaml
+++ b/x-pack/plugins/cases/docs/openapi/paths/s@{spaceid}@api@cases@{caseid}@comments.yaml
@@ -5,6 +5,7 @@ post:
     You must have `all` privileges for the **Cases** feature in the
     **Management**, **Observability**, or **Security** section of the Kibana
     feature privileges, depending on the owner of the case you're creating.
+    NOTE: Each case can have a maximum of 1,000 alerts.
   tags:
     - cases
   parameters: