diff --git a/lib/ProductOpener/APITaxonomySuggestions.pm b/lib/ProductOpener/APITaxonomySuggestions.pm
index f9283e4f4df06..e29c4512bc121 100644
--- a/lib/ProductOpener/APITaxonomySuggestions.pm
+++ b/lib/ProductOpener/APITaxonomySuggestions.pm
@@ -125,10 +125,8 @@ sub taxonomy_suggestions_api ($request_ref) {
 	}
 	# Generate suggestions
 	else {
-		my $options_relavant = {%$options_ref};
-		delete $options_relavant->{get_synonyms};
 		my @suggestions
-			= get_taxonomy_suggestions_with_synonyms($tagtype, $search_lc, $string, $context_ref, $options_relavant);
+			= get_taxonomy_suggestions_with_synonyms($tagtype, $search_lc, $string, $context_ref, $options_ref);
 		$log->debug("taxonomy_suggestions_api", @suggestions) if $log->is_debug();
 		$response_ref->{suggestions} = [map {$_->{tag}} @suggestions];
 		if ($options_ref->{get_synonyms}) {
diff --git a/lib/ProductOpener/TaxonomySuggestions.pm b/lib/ProductOpener/TaxonomySuggestions.pm
index 642108e4481a7..628d2d3ad5a4f 100644
--- a/lib/ProductOpener/TaxonomySuggestions.pm
+++ b/lib/ProductOpener/TaxonomySuggestions.pm
@@ -379,6 +379,12 @@ By priority, the function returns:
 - limit: limit of number of results
 - format (not yet defined and implemented)
 
+=head3 Return value
+
+An array of suggestions hashes with the following fields:
+- tag: the tag to suggest
+- matched_synonym: the synonym that matched the input string
+
 =cut
 
 sub filter_suggestions_matching_string_with_synonyms ($tags_ref, $tagtype, $search_lc, $string, $options_ref) {
@@ -424,7 +430,12 @@ sub filter_suggestions_matching_string_with_synonyms ($tags_ref, $tagtype, $sear
 		my $stringid = get_string_id_for_lang("no_language", normalize_packager_codes($string));
 		foreach my $canon_tagid (@$tags_ref) {
 			next if $canon_tagid !~ /^$stringid/;
-			push @suggestions, normalize_packager_codes($canon_tagid);
+			my $normalized_tag = normalize_packager_codes($canon_tagid);
+			my $suggestion_ref = {
+				tag => $normalized_tag,
+				matched_synonym => $normalized_tag
+			};
+			push @suggestions, $suggestion_ref;
 			last if ++$suggestions_count >= $limit;
 		}
 	}
@@ -467,24 +478,24 @@ sub filter_suggestions_matching_string_with_synonyms ($tags_ref, $tagtype, $sear
 				}
 			) if $log->is_debug();
 
-			my $to_add = {
+			my $suggestion_ref = {
 				tag => $tag,
 				matched_synonym => $best_match->{match}
 			};
 			# matching at start, best matches
 			if ($best_match->{type} eq "start") {
-				push @suggestions, $to_add;
+				push @suggestions, $suggestion_ref;
 				# count matches at start so that we can return only if we have enough matches
 				$suggestions_count++;
 				last if $suggestions_count >= $limit;
 			}
 			# matching inside
 			elsif ($best_match->{type} eq "inside") {
-				push @suggestions_c, $to_add;
+				push @suggestions_c, $suggestion_ref;
 			}
 			# fuzzy match
 			elsif ($best_match->{type} eq "fuzzy") {
-				push @suggestions_f, $to_add;
+				push @suggestions_f, $suggestion_ref;
 			}
 		}
 	}
diff --git a/tests/integration/api_v3_taxonomy_suggestions.t b/tests/integration/api_v3_taxonomy_suggestions.t
index a9aee1bbca176..27201f4e6a785 100755
--- a/tests/integration/api_v3_taxonomy_suggestions.t
+++ b/tests/integration/api_v3_taxonomy_suggestions.t
@@ -35,188 +35,165 @@ my $tests_ref = [
 		test_case => 'categories-no-string',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=categories',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'categories-string-strawberry',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=categories&string=strawberry',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'categories-term-strawberry',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=categories&term=strawberry',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'categories-string-fraise',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=categories&string=fraise',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'categories-string-fr-fraise',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=categories&string=fraise&lc=fr',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'categories-string-fr-frais',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=categories&string=frais&lc=fr',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'categories-string-fr-cafe-accent',
 		method => 'GET',
-		path => '/api/v3/taxonomy_suggestions?tagtype=categories&string=Café&lc=fr',
-		expected_status_code => 200,
-	},
-	{
-		test_case => 'categories-string-fr-cafe-accent',
-		method => 'GET',
-		path => '/api/v3/taxonomy_suggestions?tagtype=categories&string=Café&lc=fr',
-		expected_status_code => 200,
+		path => '/api/v3/taxonomy_suggestions?tagtype=categories&string=caf%C3%A9&lc=fr',
 	},
 	{
 		test_case => 'allergens-string-fr-o-get-synonyms',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=allergens&string=o&lc=fr&get_synonyms=1',
-		expected_status_code => 200,
 	},
 	# Packaging suggestions return most popular suggestions first
 	{
 		test_case => 'packaging-shapes',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-shapes-fr',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes&lc=fr',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-shapes-string-po',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes&string=po',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-shapes-string-fr-po',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes&string=po&lc=fr',
-		expected_status_code => 200,
 	},
 	# Packaging shape suggestions can be specific to a country and categories, and shape
 	{
 		test_case => 'packaging-shapes-cc-fr',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes&cc=fr',
-		expected_status_code => 200,
 	},
 	# categories can contain a comma separated list of taxonomy entry ids, entry name or synonym in the lc language
 	{
 		test_case => 'packaging-shapes-categories-mango-nectars-beverages',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes&categories=mango%20nectars,beverages',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-shapes-cc-fr-categories-yogurt',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes&cc=fr&categories=yogurt',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-shapes-cc-fr-categories-en-yogurts',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes&cc=fr&categories=en:yogurts',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-shapes-cc-fr-categories-yaourt-fr',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_shapes&cc=fr&categories=yaourt&lc=fr',
-		expected_status_code => 200,
 	},
 	# Packaging materials suggestions can be specific to a country and categories, and shape
 	{
 		test_case => 'packaging-materials',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_materials',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-materials-cc-fr',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_materials&cc=fr',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-materials-cc-fr-shape-pot',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_materials&cc=fr&shape=pot',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-materials-cc-fr-categories-yaourt-shape-pot',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_materials&cc=fr&categories=yogurts&shape=pot',
-		expected_status_code => 200,
 	},
 	# match with xx: synonyms
 	{
 		test_case => 'packaging-materials-1',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_materials&string=1',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-materials-01',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_materials&string=01',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-materials-1-pet',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_materials&string=1-pet',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-materials-pet-1',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_materials&string=pet-1',
-		expected_status_code => 200,
 	},
 	# Packaging recycling
 	{
 		test_case => 'packaging-recycling-fr-recy',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_recycling&cc=fr&string=recy',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-recycling-fr-bac-ver',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_recycling&cc=fr&string=bac-ver',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-recycling-fr-bac-verre',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_recycling&cc=fr&string=bac-verre',
-		expected_status_code => 200,
 	},
 	{
 		test_case => 'packaging-recycling-fr-bac-tri',
 		method => 'GET',
 		path => '/api/v3/taxonomy_suggestions?tagtype=packaging_recycling&cc=fr&string=bac-tri',
-		expected_status_code => 200,
 	},
+	# packaging codes / EMB codes: not a taxonomy, but can have suggestions too
+	{
+		test_case => 'emb-codes',
+		method => 'GET',
+		path => '/api/v3/taxonomy_suggestions?tagtype=emb_codes&string=fr%2056',
+	},
+	# suggestions with synonyms
+	{
+		test_case => 'categories-string-fr-tart-get-synonyms',
+		method => 'GET',
+		path => '/api/v3/taxonomy_suggestions?tagtype=categories&string=tart&lc=fr&get_synonyms=1',
+	}
 ];
 
 execute_api_tests(__FILE__, $tests_ref);
diff --git a/tests/integration/expected_test_results/api_v3_taxonomy_suggestions/categories-string-fr-tart-get-synonyms.json b/tests/integration/expected_test_results/api_v3_taxonomy_suggestions/categories-string-fr-tart-get-synonyms.json
new file mode 100644
index 0000000000000..784401c517709
--- /dev/null
+++ b/tests/integration/expected_test_results/api_v3_taxonomy_suggestions/categories-string-fr-tart-get-synonyms.json
@@ -0,0 +1,59 @@
+{
+   "errors" : [],
+   "matched_synonyms" : {
+      "Flammekueches" : "Tarte flambée",
+      "Produits à tartiner" : "Tartinables",
+      "Quiches au poireau" : "Tartes aux poireaux",
+      "Quiches au poisson" : "Tartes au poisson",
+      "Quiches au saumon" : "Tartes au saumon",
+      "Quiches aux épinards" : "Tartes aux épinards",
+      "Salades d'œufs" : "Tartinades d'œufs",
+      "Tartares d'algues" : "Tartares d'algues",
+      "Tartares de boeuf" : "Tartares de boeuf",
+      "Tartares de viande" : "Tartares de viande",
+      "Tarte au vin" : "Tarte au vin",
+      "Tarte aux fruits rouges" : "Tarte aux fruits rouges",
+      "Tarte aux groseilles" : "Tarte aux groseilles",
+      "Tarte aux noix de Saint-Jacques" : "Tarte aux noix de Saint-Jacques",
+      "Tarte aux poires amandine" : "Tarte aux poires amandine",
+      "Tarte à l'oignon" : "Tarte à l'oignon",
+      "Tarte à la provençale" : "Tarte à la provençale",
+      "Tarte épinard chèvre" : "Tarte épinard chèvre",
+      "Tartelettes" : "Tartelettes",
+      "Tartelettes au caramel" : "Tartelettes au caramel",
+      "Tartelettes au chocolat" : "Tartelettes au chocolat",
+      "Tartelettes au citron" : "Tartelettes au citron",
+      "Tartelettes aux fruits entiers ou coupés" : "Tartelettes aux fruits entiers ou coupés",
+      "Tartelettes à l'abricot" : "Tartelettes à l'abricot",
+      "Tartelettes à la fraise" : "Tartelettes à la fraise"
+   },
+   "status" : "success",
+   "suggestions" : [
+      "Flammekueches",
+      "Produits à tartiner",
+      "Quiches au poireau",
+      "Quiches au poisson",
+      "Quiches au saumon",
+      "Quiches aux épinards",
+      "Salades d'œufs",
+      "Tartares d'algues",
+      "Tartares de boeuf",
+      "Tartares de viande",
+      "Tarte au vin",
+      "Tarte aux fruits rouges",
+      "Tarte aux groseilles",
+      "Tarte aux noix de Saint-Jacques",
+      "Tarte aux poires amandine",
+      "Tarte à l'oignon",
+      "Tarte à la provençale",
+      "Tarte épinard chèvre",
+      "Tartelettes",
+      "Tartelettes au caramel",
+      "Tartelettes au chocolat",
+      "Tartelettes au citron",
+      "Tartelettes aux fruits entiers ou coupés",
+      "Tartelettes à l'abricot",
+      "Tartelettes à la fraise"
+   ],
+   "warnings" : []
+}
diff --git a/tests/integration/expected_test_results/api_v3_taxonomy_suggestions/emb-codes.json b/tests/integration/expected_test_results/api_v3_taxonomy_suggestions/emb-codes.json
new file mode 100644
index 0000000000000..b9ab97e8b38f5
--- /dev/null
+++ b/tests/integration/expected_test_results/api_v3_taxonomy_suggestions/emb-codes.json
@@ -0,0 +1,32 @@
+{
+   "errors" : [],
+   "status" : "success",
+   "suggestions" : [
+      "FR 56.003.001 EC",
+      "FR 56.003.002 EC",
+      "FR 56.003.003 EC",
+      "FR 56.003.004 EC",
+      "FR 56.003.005 EC",
+      "FR 56.003.006 EC",
+      "FR 56.003.007 EC",
+      "FR 56.003.015 EC",
+      "FR 56.003.801 EC",
+      "FR 56.005.002 EC",
+      "FR 56.005.801 EC",
+      "FR 56.007.002 EC",
+      "FR 56.007.017 EC",
+      "FR 56.007.032 EC",
+      "FR 56.007.045 EC",
+      "FR 56.007.051 EC",
+      "FR 56.007.057 EC",
+      "FR 56.007.059 EC",
+      "FR 56.007.061 EC",
+      "FR 56.007.066 EC",
+      "FR 56.007.068 EC",
+      "FR 56.007.069 EC",
+      "FR 56.007.076 EC",
+      "FR 56.007.078 EC",
+      "FR 56.007.079 EC"
+   ],
+   "warnings" : []
+}