explicit error message when org sso identifier invalid

Author: mzieniukbw

src/Core/Auth/UserFeatures/TdeOnboardingPassword/TdeOnboardingPasswordCommand.cs

@@ -47,7 +47,7 @@ public async Task OnboardMasterPasswordAsync(User user, SetInitialMasterPassword
         var org = await _organizationRepository.GetByIdentifierAsync(masterPasswordDataModel.OrgSsoIdentifier);
         if (org == null)
         {
-            throw new BadRequestException("Organization invalid.");
+            throw new BadRequestException("Organization SSO identifier is invalid.");
         }
 
         var orgUser = await _organizationUserRepository.GetByOrganizationAsync(org.Id, user.Id);

src/Core/Auth/UserFeatures/UserMasterPassword/SetInitialMasterPasswordCommand.cs

@@ -54,7 +54,7 @@ public async Task SetInitialMasterPasswordAsync(User user,
         var org = await _organizationRepository.GetByIdentifierAsync(masterPasswordDataModel.OrgSsoIdentifier);
         if (org == null)
         {
-            throw new BadRequestException("Organization invalid.");
+            throw new BadRequestException("Organization SSO identifier is invalid.");
         }
 
         var orgUser = await _organizationUserRepository.GetByOrganizationAsync(org.Id, user.Id);