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app/helpers/merge_requests_helper.rb

@@ -53,4 +53,19 @@ module MergeRequestsHelper
   def accessed_from_check_answers?(referrer)
     %w[check_answers].include?(referrer)
   end
+
+  def merge_request_back_link(merge_request, page, referrer)
+    return merge_request_path(merge_request) if accessed_from_check_answers?(referrer)
+
+    case page
+    when "absorbing_organisation"
+      organisations_path(anchor: "merge-requests")
+    when "merging_organisations"
+      absorbing_organisation_merge_request_path(merge_request)
+    when "merge_date"
+      merging_organisations_merge_request_path(merge_request)
+    when "helpdesk_ticket"
+      merge_date_merge_request_path(merge_request)
+    end
+  end
 end

app/views/merge_requests/absorbing_organisation.html.erb

@@ -1,7 +1,7 @@
 <% content_for :before_content do %>
   <% title = "Tell us if your organisation is merging" %>
   <% content_for :title, title %>
-  <%= govuk_back_link href: organisations_path(anchor: "merge-requests") %>
+  <%= govuk_back_link href: merge_request_back_link(@merge_request, "absorbing_organisation", request.query_parameters["referrer"]) %>
 <% end %>
 
 <%= form_with model: @merge_request, url: merge_request_path, method: :patch do |f| %>

app/views/merge_requests/helpdesk_ticket.html.erb

@@ -1,7 +1,7 @@
 <% content_for :before_content do %>
   <% title = "Which helpdesk ticket reported this merge?" %>
   <% content_for :title, title %>
-  <%= govuk_back_link href: merge_date_merge_request_path(@merge_request) %>
+  <%= govuk_back_link href: merge_request_back_link(@merge_request, "helpdesk_ticket", request.query_parameters["referrer"]) %>
 <% end %>
 
 <%= form_with model: @merge_request, url: merge_request_path, method: :patch do |f| %>

app/views/merge_requests/merge_date.html.erb

@@ -1,7 +1,7 @@
 <% content_for :before_content do %>
   <% title = "Tell us if your organisation is merging" %>
   <% content_for :title, title %>
-  <%= govuk_back_link href: merging_organisations_merge_request_path(@merge_request) %>
+  <%= govuk_back_link href: merge_request_back_link(@merge_request, "merge_date", request.query_parameters["referrer"]) %>
 <% end %>
  <div class="govuk-grid-row">
     <div class="govuk-grid-column-two-thirds-from-desktop">

app/views/merge_requests/merging_organisations.html.erb

@@ -1,7 +1,7 @@
 <% content_for :before_content do %>
   <% title = "Tell us if your organisation is merging" %>
   <% content_for :title, title %>
-  <%= govuk_back_link href: merge_request_organisation_path(id: @merge_request.requesting_organisation_id) %>
+  <%= govuk_back_link href: merge_request_back_link(@merge_request, "merging_organisations", request.query_parameters["referrer"]) %>
 <% end %>
 
 <%= form_with model: @merge_request, url: merging_organisations_merge_request_path(referrer: request.query_parameters["referrer"]), method: :patch do |f| %>