diff --git a/core/product.mk b/core/product.mk
index 01b5ead..aa9a9a3 100644
--- a/core/product.mk
+++ b/core/product.mk
@@ -456,7 +456,7 @@
 
 _product_single_value_vars += PRODUCT_BUILD_FROM_SOURCE_STUB
 
-_product_list_vars += PRODUCT_BUILD_IGNORE_APEX_CONTRIBUTION_CONTENTS
+_product_single_value_vars += PRODUCT_BUILD_IGNORE_APEX_CONTRIBUTION_CONTENTS
 
 _product_single_value_vars += PRODUCT_HIDDEN_API_EXPORTABLE_STUBS
 
diff --git a/core/product_config.mk b/core/product_config.mk
index 4525423..fae2c1a 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -301,6 +301,23 @@
 PRODUCT_INCLUDE_TAGS += com.android.mainline mainline_module_prebuilt_nightly
 endif
 
+# AOSP and Google products currently share the same `apex_contributions` in next.
+# This causes issues when building <aosp_product>-next-userdebug in main.
+# Create a temporary allowlist to ignore the google apexes listed in `contents` of apex_contributions of `next`
+# *for aosp products*.
+# TODO(b/308187268): Remove this denylist mechanism
+# Use PRODUCT_PACKAGES to determine if this is an aosp product. aosp products do not use google signed apexes.
+ignore_apex_contributions :=
+ifeq (,$(findstring com.google.android.conscrypt,$(PRODUCT_PACKAGES))$(findstring com.google.android.go.conscrypt,$(PRODUCT_PACKAGES)))
+  ignore_apex_contributions := true
+endif
+ifeq (true,$(PRODUCT_MODULE_BUILD_FROM_SOURCE))
+  ignore_apex_contributions := true
+endif
+ifeq (true, $(ignore_apex_contributions))
+PRODUCT_BUILD_IGNORE_APEX_CONTRIBUTION_CONTENTS := true
+endif
+
 #############################################################################
 
 # Quick check and assign default values
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 1e419f3..e382407 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -339,7 +339,7 @@
 
 $(call add_json_bool, CheckVendorSeappViolations, $(filter true,$(CHECK_VENDOR_SEAPP_VIOLATIONS)))
 
-$(call add_json_list, BuildIgnoreApexContributionContents, $(sort $(PRODUCT_BUILD_IGNORE_APEX_CONTRIBUTION_CONTENTS)))
+$(call add_json_bool, BuildIgnoreApexContributionContents, $(PRODUCT_BUILD_IGNORE_APEX_CONTRIBUTION_CONTENTS))
 
 $(call add_json_map, PartitionVarsForBazelMigrationOnlyDoNotUse)
   $(call add_json_str,  ProductDirectory,    $(dir $(INTERNAL_PRODUCT)))