diff --git a/.changes/next-release/feature-AWSCodeBuild-6330aaf.json b/.changes/next-release/feature-AWSCodeBuild-6330aaf.json
new file mode 100644
index 000000000000..fb719501b5d9
--- /dev/null
+++ b/.changes/next-release/feature-AWSCodeBuild-6330aaf.json
@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AWS CodeBuild",
+    "contributor": "",
+    "description": "AWS CodeBuild now supports Session Manager debugging for batch builds."
+}
diff --git a/services/codebuild/src/main/resources/codegen-resources/service-2.json b/services/codebuild/src/main/resources/codegen-resources/service-2.json
index 6f64f5879d96..31dd2cd9a9e8 100644
--- a/services/codebuild/src/main/resources/codegen-resources/service-2.json
+++ b/services/codebuild/src/main/resources/codegen-resources/service-2.json
@@ -1075,6 +1075,10 @@
         "buildGroups":{
           "shape":"BuildGroups",
           "documentation":"<p>An array of <code>BuildGroup</code> objects that define the build groups for the batch build.</p>"
+        },
+        "debugSessionEnabled":{
+          "shape":"WrapperBoolean",
+          "documentation":"<p/> <p>Specifies if session debugging is enabled for this batch build. For more information, see <a href=\"https://docs.aws.amazon.com/codebuild/latest/userguide/session-manager.html\">Viewing a running build in Session Manager</a>. Batch session debugging is not supported for matrix batch builds.</p>"
         }
       },
       "documentation":"<p>Contains information about a batch build.</p>"
@@ -2941,7 +2945,7 @@
       "members":{
         "type":{
           "shape":"SourceType",
-          "documentation":"<p>The type of repository that contains the source code to be built. Valid values include:</p> <ul> <li> <p> <code>BITBUCKET</code>: The source code is in a Bitbucket repository.</p> </li> <li> <p> <code>CODECOMMIT</code>: The source code is in an AWS CodeCommit repository.</p> </li> <li> <p> <code>CODEPIPELINE</code>: The source code settings are specified in the source action of a pipeline in AWS CodePipeline.</p> </li> <li> <p> <code>GITHUB</code>: The source code is in a GitHub or GitHub Enterprise Cloud repository.</p> </li> <li> <p> <code>GITHUB_ENTERPRISE</code>: The source code is in a GitHub Enterprise Server repository.</p> </li> <li> <p> <code>NO_SOURCE</code>: The project does not have input source code.</p> </li> <li> <p> <code>S3</code>: The source code is in an Amazon S3 input bucket.</p> </li> </ul>"
+          "documentation":"<p>The type of repository that contains the source code to be built. Valid values include:</p> <ul> <li> <p> <code>BITBUCKET</code>: The source code is in a Bitbucket repository.</p> </li> <li> <p> <code>CODECOMMIT</code>: The source code is in an AWS CodeCommit repository.</p> </li> <li> <p> <code>CODEPIPELINE</code>: The source code settings are specified in the source action of a pipeline in AWS CodePipeline.</p> </li> <li> <p> <code>GITHUB</code>: The source code is in a GitHub or GitHub Enterprise Cloud repository.</p> </li> <li> <p> <code>GITHUB_ENTERPRISE</code>: The source code is in a GitHub Enterprise Server repository.</p> </li> <li> <p> <code>NO_SOURCE</code>: The project does not have input source code.</p> </li> <li> <p> <code>S3</code>: The source code is in an Amazon S3 bucket.</p> </li> </ul>"
         },
         "location":{
           "shape":"String",
@@ -2977,7 +2981,7 @@
         },
         "sourceIdentifier":{
           "shape":"String",
-          "documentation":"<p> An identifier for this project source. </p>"
+          "documentation":"<p>An identifier for this project source. The identifier can only contain alphanumeric characters and underscores, and must be less than 128 characters in length. </p>"
         }
       },
       "documentation":"<p>Information about the build input source code for the build project.</p>"
@@ -2991,7 +2995,7 @@
       "members":{
         "sourceIdentifier":{
           "shape":"String",
-          "documentation":"<p>An identifier for a source in the build project.</p>"
+          "documentation":"<p>An identifier for a source in the build project. The identifier can only contain alphanumeric characters and underscores, and must be less than 128 characters in length. </p>"
         },
         "sourceVersion":{
           "shape":"String",
@@ -3649,6 +3653,10 @@
         "buildBatchConfigOverride":{
           "shape":"ProjectBuildBatchConfig",
           "documentation":"<p>A <code>BuildBatchConfigOverride</code> object that contains batch build configuration overrides.</p>"
+        },
+        "debugSessionEnabled":{
+          "shape":"WrapperBoolean",
+          "documentation":"<p>Specifies if session debugging is enabled for this batch build. For more information, see <a href=\"https://docs.aws.amazon.com/codebuild/latest/userguide/session-manager.html\">Viewing a running build in Session Manager</a>. Batch session debugging is not supported for matrix batch builds.</p>"
         }
       }
     },