diff --git a/markup_doc/sync_api.py b/markup_doc/sync_api.py
index d1bb46f..c31738d 100644
--- a/markup_doc/sync_api.py
+++ b/markup_doc/sync_api.py
@@ -93,17 +93,27 @@ def build_api_url_core(domain, endpoint, params):
     return f"{url}?{query}"
 
 
-def sync_journals_from_api():
+def sync_journals_from_api(
+    collection_acron=None,
+    issn_scielo=None,
+    from_date_updated=None,
+):
     sync_state = CoreSyncState.get_for_resource(resource="journal")
-    from_date_updated = sync_state.get_from_date_updated(
-        settings.CORE_ISSUE_FROM_DATE_CREATED
-    )
+    if from_date_updated is None:
+        from_date_updated = sync_state.get_from_date_updated(
+            settings.CORE_ISSUE_FROM_DATE_CREATED
+        )
+
+    params = {"from_date_updated": from_date_updated}
+    if collection_acron:
+        params["collection"] = collection_acron
+    if issn_scielo:
+        params["issn_scielo"] = issn_scielo
+
     url = build_api_url_core(
         domain=settings.CORE_API_DOMAIN,
         endpoint=settings.CORE_JOURNAL_API_ENDPOINT,
-        params={
-            "from_date_updated": from_date_updated
-        }
+        params=params,
     )
     synced_count = 0
     skipped_count = 0
@@ -113,20 +123,22 @@ def sync_journals_from_api():
         for item in items:
             journal = _build_journal_from_api_item(item)
             obj, _ = JournalModel.objects.update_or_create(
-            title=journal.title,
-            defaults={
-                "short_title": journal.short_title,
-                "title_nlm": journal.title_nlm,
-                "acronym": journal.acronym,
-                "issn": journal.issn,
-                "pissn": journal.pissn,
-                "eissn": journal.eissn,
-                "pubname": journal.pubname,
-            },
+                title=journal.title,
+                defaults={
+                    "short_title": journal.short_title,
+                    "title_nlm": journal.title_nlm,
+                    "acronym": journal.acronym,
+                    "issn": journal.issn,
+                    "pissn": journal.pissn,
+                    "eissn": journal.eissn,
+                    "pubname": journal.pubname,
+                },
             )
             logger.info(f"Journal {obj} completed")
+            synced_count += 1
             max_created = track_max_from_item(max_created, item)
-        finalize_core_sync_state(sync_state, max_created)
+
+    finalize_core_sync_state(sync_state, max_created)
     logger.info(
         f"Journal sync finished. Synced={synced_count} skipped={skipped_count}"
     )
@@ -166,37 +178,56 @@ def build_issue_from_data(item):
     return issue_data
 
 
-def sync_issues_from_api():
+def _get_registered_issn_scielo_values(issn_scielo=None):
+    queryset = JournalModel.objects.exclude(issn__isnull=True).exclude(issn="")
+    if issn_scielo:
+        queryset = queryset.filter(issn=issn_scielo)
+    return queryset.values_list("issn", flat=True).distinct()
+
+
+def sync_issues_from_api(issn_scielo=None, from_date_updated=None):
     sync_state = CoreSyncState.get_for_resource(resource="issue")
-    from_date_updated = sync_state.get_from_date_updated(
-        settings.CORE_ISSUE_FROM_DATE_CREATED
-    )
-    url = build_api_url_core(
-        domain=settings.CORE_API_DOMAIN,
-        endpoint=settings.CORE_ISSUE_API_ENDPOINT,
-        params={
-            "from_date_updated": from_date_updated
-        }
-    )
+    if from_date_updated is None:
+        from_date_updated = sync_state.get_from_date_updated(
+            settings.CORE_ISSUE_FROM_DATE_CREATED
+        )
+
+    registered_issns = _get_registered_issn_scielo_values(issn_scielo=issn_scielo)
+    if not registered_issns:
+        logger.warning(
+            "Issue sync skipped: no registered journals found"
+            + (f" for issn_scielo={issn_scielo}" if issn_scielo else "")
+        )
+        return
+
     synced_count = 0
     skipped_count = 0
     max_created = sync_state.last_updated_at
 
-    for items in _iter_api_pages(url, "issues"):
-        for item in items:
-            journal = _get_journal_from_issue_data(item)
-            if not journal:
-                skipped_count += 1
-                continue
-            issue_data = build_issue_from_data(item)
-            issue_data.update({"journal": journal})
-            Issue.objects.get_or_create(
-                **issue_data,
-            )
-            synced_count += 1
-            max_created = track_max_from_item(max_created, item)
-        finalize_core_sync_state(sync_state, max_created)
+    for journal_issn in registered_issns:
+        url = build_api_url_core(
+            domain=settings.CORE_API_DOMAIN,
+            endpoint=settings.CORE_ISSUE_API_ENDPOINT,
+            params={
+                "from_date_updated": from_date_updated,
+                "issn_scielo": journal_issn,
+            },
+        )
 
+        for items in _iter_api_pages(url, f"issues ({journal_issn})"):
+            for item in items:
+                journal = _get_journal_from_issue_data(item)
+                if not journal:
+                    skipped_count += 1
+                    continue
+                issue_data = build_issue_from_data(item)
+                issue_data.update({"journal": journal})
+                Issue.objects.get_or_create(**issue_data)
+                synced_count += 1
+                max_created = track_max_from_item(max_created, item)
+
+    finalize_core_sync_state(sync_state, max_created)
     logger.info(
-        f"Issue sync finished. from_date_created={from_date_updated} synced={synced_count} skipped={skipped_count}"
+        f"Issue sync finished. from_date_updated={from_date_updated} "
+        f"synced={synced_count} skipped={skipped_count}"
     )
diff --git a/markup_doc/tasks.py b/markup_doc/tasks.py
index c480f22..dd7b6b0 100644
--- a/markup_doc/tasks.py
+++ b/markup_doc/tasks.py
@@ -71,13 +71,29 @@ def clean_labels(text):
 
 
 @celery_app.task()
-def task_sync_journals_from_api(user_id=None, collection_acron=None):
-    sync_journals_from_api()
+def task_sync_journals_from_api(
+    user_id=None,
+    collection_acron=None,
+    issn_scielo=None,
+    from_date_updated=None,
+):
+    sync_journals_from_api(
+        collection_acron=collection_acron,
+        issn_scielo=issn_scielo,
+        from_date_updated=from_date_updated,
+    )
 
 
 @celery_app.task()
-def task_sync_issues_from_api(user_id=None):
-    sync_issues_from_api()
+def task_sync_issues_from_api(
+    user_id=None,
+    issn_scielo=None,
+    from_date_updated=None,
+):
+    sync_issues_from_api(
+        issn_scielo=issn_scielo,
+        from_date_updated=from_date_updated,
+    )
 
 
 @celery_app.task()