Add new Bicep error codes

Author: mumian

articles/azure-resource-manager/bicep/bicep-core-diagnostics.md

@@ -7,7 +7,7 @@ ms.custom:
   - devx-track-bicep
   - devx-track-arm-template
   - build-2025
-ms.date: 06/06/2025
+ms.date: 06/19/2025
 ---
 
 # Bicep core diagnostics
@@ -400,6 +400,10 @@ If you need more information about a particular diagnostic code, select the **Fe
 | <a id='BCP418' />BCP418 | Error | Extensions cannot be referenced here. Extensions can only be referenced by module extension configurations.   |
 | <a id='BCP419' />BCP419 | Error | Namespace name `{name}` cannot be used as an extension name.|
 
+| <a id='BCP420' />BCP420 | Error | The scope could not be resolved at compile time because the supplied expression is ambiguous or too complex. Scoping expressions must be reducible to a specific kind of scope without knowledge of parameter values.|
+| <a id='BCP421' />BCP421 | Error | Module "{moduleName}" contains one or more secure outputs, which are not supported with "{LanguageConstants.TargetScopeKeyword}" set to "{LanguageConstants.TargetScopeTypeLocal}".|
+| <a id='BCP422' />BCP422 | Error | A resource of type \"{baseType}\" may or may not exist when this function is called, which could cause the deployment to fail.|
+
 ## Next steps
 
 See the [What is Bicep?](./overview.md) overview to learn more about Bicep.