diff --git a/database/deploy/setup.sql b/database/deploy/setup.sql
index 9d84069..9014fe9 100644
--- a/database/deploy/setup.sql
+++ b/database/deploy/setup.sql
@@ -1984,4 +1984,140 @@ ORDER BY
     ,l.target
     ,l."count" desc;
 END;
-$f$
\ No newline at end of file
+$f$;
+
+
+--setup function to delete a single source
+DROP FUNCTION IF EXISTS tps.srce_delete(jsonb);
+CREATE FUNCTION tps.srce_delete(_defn jsonb) RETURNS jsonb
+AS
+$f$
+DECLARE 
+    _message jsonb;
+    _MESSAGE_TEXT text;
+    _PG_EXCEPTION_DETAIL text;
+    _PG_EXCEPTION_HINT text;
+    _rebuild BOOLEAN;
+BEGIN
+
+    -------------------------------do delete---------------------------------
+
+    DELETE FROM tps.srce WHERE srce = _defn->>'name';
+    --could move this record to a "recycle bin" table for a certain period of time
+    --need to handle cascading record deletes
+    
+    ---------------------------set message-----------------------------------
+    _message:= 
+    (
+        $$
+            {
+            "status":"complete",
+            "message":"source was permanently deleted"
+            }
+        $$::jsonb
+    );
+
+    RETURN _message;
+
+    
+
+    EXCEPTION WHEN OTHERS THEN
+        GET STACKED DIAGNOSTICS 
+            _MESSAGE_TEXT = MESSAGE_TEXT,
+            _PG_EXCEPTION_DETAIL = PG_EXCEPTION_DETAIL,
+            _PG_EXCEPTION_HINT = PG_EXCEPTION_HINT;
+        _message:= 
+        ($$
+            {
+                "status":"fail",
+                "message":"error dropping the source"
+            }
+        $$::jsonb)
+        ||jsonb_build_object('message_text',_MESSAGE_TEXT)
+        ||jsonb_build_object('pg_exception_detail',_PG_EXCEPTION_DETAIL);
+    RETURN _message;
+END;
+$f$
+LANGUAGE plpgsql;
+
+/*
+This function takes and array of definition object where "name" object is the primary key
+It will force the entire body of sources to match what is received
+*/
+DROP FUNCTION IF EXISTS tps.srce_overwrite_all(jsonb);
+CREATE FUNCTION tps.srce_overwrite_all(_defn jsonb) RETURNS jsonb
+AS
+$f$
+DECLARE 
+    _message jsonb;
+    _MESSAGE_TEXT text;
+    _PG_EXCEPTION_DETAIL text;
+    _PG_EXCEPTION_HINT text;
+    _rebuild BOOLEAN;
+BEGIN
+
+    WITH
+    --retain the results of the update by srce
+    _set AS (
+    SELECT
+        j.rn rn
+        ,j.e->>'name' srce
+        ,j.e defn
+    FROM
+        jsonb_array_elements(_defn) WITH ORDINALITY j(e, rn)
+    )
+    --full join
+    ,_full AS (
+        SELECT
+            COALESCE(_srce.srce,_set.srce) srce
+            ,CASE COALESCE(_set.srce,'DELETE') WHEN 'DELETE' THEN 'DELETE' ELSE 'SET' END actn
+            ,COALESCE(_set.defn,_srce.defn) defn
+        FROM
+            tps.srce _srce
+            FULL OUTER JOIN _set ON
+                _set.srce = _srce.srce
+    )
+    --call functions from list
+    ,_do AS (
+    SELECT 
+        f.srce
+        ,f.actn
+        ,COALESCE(setd.message, deld.message) message
+    FROM 
+        _full f
+        LEFT JOIN LATERAL tps.srce_set(defn) setd(message) ON f.actn = 'SET'
+        LEFT JOIN LATERAL tps.srce_delete(defn) deld(message) ON f.actn = 'DELETE'
+    )
+    --aggregate all the messages into one message
+    ----
+    ----    should look at rolling back the whole thing if one of the function returns a fail. stored proc could do this.
+    ----
+    SELECT
+        jsonb_agg(jsonb_build_object('source',srce,'status',message->>'status','message',message->>'message'))
+    INTO
+        _message
+    FROM
+        _do;
+
+    RETURN _message;
+
+    
+
+    EXCEPTION WHEN OTHERS THEN
+        GET STACKED DIAGNOSTICS 
+            _MESSAGE_TEXT = MESSAGE_TEXT,
+            _PG_EXCEPTION_DETAIL = PG_EXCEPTION_DETAIL,
+            _PG_EXCEPTION_HINT = PG_EXCEPTION_HINT;
+        _message:= 
+        ($$
+            {
+                "status":"fail",
+                "message":"error updating sources"
+            }
+        $$::jsonb)
+        ||jsonb_build_object('message_text',_MESSAGE_TEXT)
+        ||jsonb_build_object('pg_exception_detail',_PG_EXCEPTION_DETAIL);
+    RETURN _message;
+END;
+$f$
+LANGUAGE plpgsql;
\ No newline at end of file
diff --git a/database/interface/source_maint/srce_delete.sql b/database/interface/source_maint/srce_delete.sql
index 004b795..bbdcce9 100644
--- a/database/interface/source_maint/srce_delete.sql
+++ b/database/interface/source_maint/srce_delete.sql
@@ -1,3 +1,4 @@
+--setup function to delete a single source
 DROP FUNCTION IF EXISTS tps.srce_delete(jsonb);
 CREATE FUNCTION tps.srce_delete(_defn jsonb) RETURNS jsonb
 AS
diff --git a/database/upgrade_scripts/01.source_front_end_build/003.srce_delete.sql b/database/upgrade_scripts/01.source_front_end_build/003.srce_delete.sql
new file mode 100644
index 0000000..bbdcce9
--- /dev/null
+++ b/database/upgrade_scripts/01.source_front_end_build/003.srce_delete.sql
@@ -0,0 +1,52 @@
+--setup function to delete a single source
+DROP FUNCTION IF EXISTS tps.srce_delete(jsonb);
+CREATE FUNCTION tps.srce_delete(_defn jsonb) RETURNS jsonb
+AS
+$f$
+DECLARE 
+    _message jsonb;
+    _MESSAGE_TEXT text;
+    _PG_EXCEPTION_DETAIL text;
+    _PG_EXCEPTION_HINT text;
+    _rebuild BOOLEAN;
+BEGIN
+
+    -------------------------------do delete---------------------------------
+
+    DELETE FROM tps.srce WHERE srce = _defn->>'name';
+    --could move this record to a "recycle bin" table for a certain period of time
+    --need to handle cascading record deletes
+    
+    ---------------------------set message-----------------------------------
+    _message:= 
+    (
+        $$
+            {
+            "status":"complete",
+            "message":"source was permanently deleted"
+            }
+        $$::jsonb
+    );
+
+    RETURN _message;
+
+    
+
+    EXCEPTION WHEN OTHERS THEN
+        GET STACKED DIAGNOSTICS 
+            _MESSAGE_TEXT = MESSAGE_TEXT,
+            _PG_EXCEPTION_DETAIL = PG_EXCEPTION_DETAIL,
+            _PG_EXCEPTION_HINT = PG_EXCEPTION_HINT;
+        _message:= 
+        ($$
+            {
+                "status":"fail",
+                "message":"error dropping the source"
+            }
+        $$::jsonb)
+        ||jsonb_build_object('message_text',_MESSAGE_TEXT)
+        ||jsonb_build_object('pg_exception_detail',_PG_EXCEPTION_DETAIL);
+    RETURN _message;
+END;
+$f$
+LANGUAGE plpgsql
\ No newline at end of file
diff --git a/database/upgrade_scripts/01.source_front_end_build/004.source_overwrite.sql b/database/upgrade_scripts/01.source_front_end_build/004.source_overwrite.sql
new file mode 100644
index 0000000..5318d02
--- /dev/null
+++ b/database/upgrade_scripts/01.source_front_end_build/004.source_overwrite.sql
@@ -0,0 +1,81 @@
+/*
+This function takes and array of definition object where "name" object is the primary key
+It will force the entire body of sources to match what is received
+*/
+DROP FUNCTION IF EXISTS tps.srce_overwrite_all(jsonb);
+CREATE FUNCTION tps.srce_overwrite_all(_defn jsonb) RETURNS jsonb
+AS
+$f$
+DECLARE 
+    _message jsonb;
+    _MESSAGE_TEXT text;
+    _PG_EXCEPTION_DETAIL text;
+    _PG_EXCEPTION_HINT text;
+    _rebuild BOOLEAN;
+BEGIN
+
+    WITH
+    --retain the results of the update by srce
+    _set AS (
+    SELECT
+        j.rn rn
+        ,j.e->>'name' srce
+        ,j.e defn
+    FROM
+        jsonb_array_elements(_defn) WITH ORDINALITY j(e, rn)
+    )
+    --full join
+    ,_full AS (
+        SELECT
+            COALESCE(_srce.srce,_set.srce) srce
+            ,CASE COALESCE(_set.srce,'DELETE') WHEN 'DELETE' THEN 'DELETE' ELSE 'SET' END actn
+            ,COALESCE(_set.defn,_srce.defn) defn
+        FROM
+            tps.srce _srce
+            FULL OUTER JOIN _set ON
+                _set.srce = _srce.srce
+    )
+    --call functions from list
+    ,_do AS (
+    SELECT 
+        f.srce
+        ,f.actn
+        ,COALESCE(setd.message, deld.message) message
+    FROM 
+        _full f
+        LEFT JOIN LATERAL tps.srce_set(defn) setd(message) ON f.actn = 'SET'
+        LEFT JOIN LATERAL tps.srce_delete(defn) deld(message) ON f.actn = 'DELETE'
+    )
+    --aggregate all the messages into one message
+    ----
+    ----    should look at rolling back the whole thing if one of the function returns a fail. stored proc could do this.
+    ----
+    SELECT
+        jsonb_agg(jsonb_build_object('source',srce,'status',message->>'status','message',message->>'message'))
+    INTO
+        _message
+    FROM
+        _do;
+
+    RETURN _message;
+
+    
+
+    EXCEPTION WHEN OTHERS THEN
+        GET STACKED DIAGNOSTICS 
+            _MESSAGE_TEXT = MESSAGE_TEXT,
+            _PG_EXCEPTION_DETAIL = PG_EXCEPTION_DETAIL,
+            _PG_EXCEPTION_HINT = PG_EXCEPTION_HINT;
+        _message:= 
+        ($$
+            {
+                "status":"fail",
+                "message":"error updating sources"
+            }
+        $$::jsonb)
+        ||jsonb_build_object('message_text',_MESSAGE_TEXT)
+        ||jsonb_build_object('pg_exception_detail',_PG_EXCEPTION_DETAIL);
+    RETURN _message;
+END;
+$f$
+LANGUAGE plpgsql
\ No newline at end of file