diff --git a/manifest/manifest.go b/manifest/manifest.go
index afabb5a..75139c0 100644
--- a/manifest/manifest.go
+++ b/manifest/manifest.go
@@ -148,7 +148,7 @@ type Manifest struct {
 
 func (m Manifest) sanityCheck() error {
 	allowedPkgTypes := []string{"srpm", "unmodified-srpm", "tarball", "standalone"}
-
+	allowedArchs := []string{"i686", "x86_64"}
 	for _, pkgSpec := range m.Package {
 		if pkgSpec.Name == "" {
 			return fmt.Errorf("Package name not specified in manifest")
@@ -203,6 +203,20 @@ func (m Manifest) sanityCheck() error {
 					pkgSpec.Name)
 			}
 		}
+
+		for pkgName, pkgPath := range pkgSpec.Build.Generator.ExternalDependencies {
+			if pkgPath == "" {
+				return fmt.Errorf("Empty repo path in yaml:external-dependencies for package %s",
+					pkgName)
+			}
+		}
+
+		for arch := range pkgSpec.Build.Generator.Multilib {
+			if !slices.Contains(allowedArchs, arch) {
+				return fmt.Errorf("Architecture %s not suported", arch)
+			}
+		}
+
 	}
 	return nil
 }
diff --git a/manifest/manifest_test.go b/manifest/manifest_test.go
index 45bb33c..51a37a4 100644
--- a/manifest/manifest_test.go
+++ b/manifest/manifest_test.go
@@ -67,6 +67,16 @@ func TestManifestNegative(t *testing.T) {
 			ManifestFile: "sampleManifest3.yaml",
 			ExpectedErr:  "Conflicting signatures for Build in package tcpdump, provide full-url or source-bundle",
 		},
+		"testEmptyExtDepsRepoPath": manifestTestVariant{
+			TestPkg:      "pkg4",
+			ManifestFile: "sampleManifest4.yaml",
+			ExpectedErr:  "Empty repo path in yaml:external-dependencies for package crypto-policies",
+		},
+		"testUnsupportedArch": manifestTestVariant{
+			TestPkg:      "pkg5",
+			ManifestFile: "sampleManifest5.yaml",
+			ExpectedErr:  "Architecture aarch64 not suported",
+		},
 	}
 	for testName, variant := range testCases {
 		t.Logf("%s: Copy sample manifest to test directory", testName)
diff --git a/manifest/testData/sampleManifest4.yaml b/manifest/testData/sampleManifest4.yaml
new file mode 100644
index 0000000..c5185d5
--- /dev/null
+++ b/manifest/testData/sampleManifest4.yaml
@@ -0,0 +1,20 @@
+---
+package:
+  - name: openssl
+    upstream-sources:
+      - source-bundle:
+          name: srpm
+          override:
+            version: 3.0.7-27.el9
+    type: srpm
+    build:
+      repo-bundle:
+        - name: el9
+      dependencies:
+        all:
+          - crypto-policies
+          - openssl3-fips
+      eextgen:
+        external-dependencies:
+          crypto-policies:
+          openssl3-fips: code.arista.io/eos/eext/openssl3-fips/
diff --git a/manifest/testData/sampleManifest5.yaml b/manifest/testData/sampleManifest5.yaml
new file mode 100644
index 0000000..bdfe764
--- /dev/null
+++ b/manifest/testData/sampleManifest5.yaml
@@ -0,0 +1,23 @@
+---
+package:
+  - name: openssl
+    upstream-sources:
+      - source-bundle:
+          name: srpm
+          override:
+            version: 3.0.7-27.el9
+    type: srpm
+    build:
+      repo-bundle:
+        - name: el9
+      dependencies:
+        all:
+          - crypto-policies
+          - openssl3-fips
+      eextgen:
+        multilib:
+          aarch64:
+            other-arch:
+              patterns:
+                - "openssl-devel*.rpm"
+              remove: True