diff --git a/src/live-spine-client.ts b/src/live-spine-client.ts
index 15f87b4b..08123549 100644
--- a/src/live-spine-client.ts
+++ b/src/live-spine-client.ts
@@ -263,7 +263,7 @@ export class LiveSpineClient implements SpineClient {
         "nhsd-request-id": inboundHeaders["nhsd-request-id"],
         "x-request-id": inboundHeaders["x-request-id"],
         "x-correlation-id": inboundHeaders["x-correlation-id"],
-        "SOAPAction": "urn:nhs:names:services:mmquery/PRESCRIPTIONSEARCH_SM01"
+        "SOAPAction": "urn:nhs:names:services:mmquery/PrescriptionSearchSyncAsync_1_0"
       }
 
       const partials: PrescriptionSearchPartials = {
diff --git a/src/resources/prescription_search.ts b/src/resources/prescription_search.ts
index 24cad83d..c0e884b9 100644
--- a/src/resources/prescription_search.ts
+++ b/src/resources/prescription_search.ts
@@ -3,7 +3,7 @@ export default `<?xml version="1.0" encoding="utf-8"?>
 <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:hl7="urn:hl7-org:v3">
     <SOAP-ENV:Header>
         <wsa:MessageID>uuid:{{messageGUID}}</wsa:MessageID>
-        <wsa:Action>urn:nhs:names:services:mmquery/PRESCRIPTIONSEARCH_SM01</wsa:Action>
+        <wsa:Action>urn:nhs:names:services:mmquery/PrescriptionSearchSyncAsync_1_0</wsa:Action>
         <wsa:To>https://pds-sync.national.ncrs.nhs.uk/syncservice-pds/pds</wsa:To>
         <wsa:From>
             <wsa:Address/>
@@ -23,11 +23,11 @@ export default `<?xml version="1.0" encoding="utf-8"?>
         </wsa:ReplyTo>
     </SOAP-ENV:Header>
     <SOAP-ENV:Body>
-        <PRESCRIPTIONSEARCH_SM01 xmlns="urn:hl7-org:v3">
+        <PrescriptionSearchSyncAsync_1_0 xmlns="urn:hl7-org:v3">
             <id root="{{messageGUID}}"/>
             <creationTime value="{{creationTime}}"/>
             <versionCode code="V3NPfIT4.2.00"/>
-            <interactionId root="2.16.840.1.113883.2.1.3.2.4.12" extension="PRESCRIPTIONSEARCH_SM01"/>
+            <interactionId root="2.16.840.1.113883.2.1.3.2.4.12" extension="PrescriptionSearchSyncAsync_1_0"/>
             <processingCode code="P"/>
             <processingModeCode code="T"/>
             <acceptAckCode code="NE"/>
@@ -109,6 +109,6 @@ export default `<?xml version="1.0" encoding="utf-8"?>
                     {{/mySiteOrganisation}}
                 </query>
             </ControlActEvent>
-        </PRESCRIPTIONSEARCH_SM01>
+        </PrescriptionSearchSyncAsync_1_0>
     </SOAP-ENV:Body>
 </SOAP-ENV:Envelope>`
diff --git a/src/resources/prescription_search_sandbox.ts b/src/resources/prescription_search_sandbox.ts
index 4f006e11..db9e787c 100644
--- a/src/resources/prescription_search_sandbox.ts
+++ b/src/resources/prescription_search_sandbox.ts
@@ -2,7 +2,7 @@
 export default `<SOAP:Envelope xmlns:crs="http://national.carerecords.nhs.uk/schema/crs/" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns="urn:hl7-org:v3" xmlns:hl7="urn:hl7-org:v3">
 <SOAP:Header>
     <wsa:MessageID>uuid:1234567890123456</wsa:MessageID>
-    <wsa:Action>urn:nhs:names:services:mmquery/PRESCRIPTIONSEARCHRESPONSE_SM01</wsa:Action>
+    <wsa:Action>urn:nhs:names:services:mmquery/PrescriptionSearchSyncAsync_1_0</wsa:Action>
     <wsa:To/>
     <wsa:From>
         <wsa:Address>https://mmquery.national.ncrs.nhs.uk/syncservice</wsa:Address>
@@ -21,11 +21,11 @@ export default `<SOAP:Envelope xmlns:crs="http://national.carerecords.nhs.uk/sch
 </SOAP:Header>
 <SOAP:Body>
     <prescriptionSearchResponse>
-        <PRESCRIPTIONSEARCHRESPONSE_SM01>
+        <PrescriptionSearchSyncAsync_1_0>
             <id root="1234567890123456"/>
             <creationTime value="20130614090835"/>
             <versionCode code="V3NPfIT3.0"/>
-            <interactionId root="2.16.840.1.113883.2.1.3.2.4.12" extension="PRESCRIPTIONSEARCHRESPONSE_SM01"/>
+            <interactionId root="2.16.840.1.113883.2.1.3.2.4.12" extension="PrescriptionSearchSyncAsync_1_0"/>
             <processingCode code="P"/>
             <processingModeCode code="T"/>
             <acceptAckCode code="NE"/>
@@ -127,7 +127,7 @@ export default `<SOAP:Envelope xmlns:crs="http://national.carerecords.nhs.uk/sch
                     <queryResponseCode code="OK"/>
                 </queryAck>
             </ControlActEvent>
-        </PRESCRIPTIONSEARCHRESPONSE_SM01>
+        </PrescriptionSearchSyncAsync_1_0>
     </prescriptionSearchResponse>
 </SOAP:Body>
 </SOAP:Envelope>`