PDM Messages are one of many types of GDS messages. This article will teach you what the purpose of a PDM message is and how to Manually process a PDM message from the GDS Message Interface. 

What are PDM Messages?

PDM stands for "Possible Duplicate Message". These PDM messages are utilized by an agency when they are unsure if their messages have been processed or not. More often than not, we will get PDM messages when we allow the GDS Messaging queue to sit too long without processing the messages. 

Reasons why we would get a PDM message

• Because the agent did not get a response to their initial message
• because the GDS that the message came from experienced an outage or processing issues

How to process a DVD Message

These instructions assume you already have the GDS Message Interface Open.

If the reservation requires no action ( meaning they sent us a duplicate and we already processed the original message)

1.) Copy the Locator from the top of the GDS Message as shown in the example above. 

2.) Set your Display to "By Locator" and Click search. 

3.) Now, modify the Type and Status to "All and All". You will see all the messages for this locator. 

4.) Review the messages and ensure they've been processed. 

5.) Highlight the DVD message and click Reply. 

6.) Append the following to the end of the message SSR OTHS 1S Rec Loc XXXXXXX (Where you replace the X's with the locator of the completed reservation)

If the reservation requires action (Meaning, they send us a duplicate and we did not already process the original message)

1.) Copy the Locator from the top of the GDS Message as shown in the example above. 

2.) Set your Display to "By Locator" and Click search. 

3.) Now, modify the Type and Status to "All and All". You will see all the messages for this locator. 

4.) Review the messages and ensure they've been processed. Since they have not been processed, double click the first message we recieved that we did not process. This should be the one with the oldest date. (Least Recent)

5.) Click the book button to process the message. When the pop up come up with the amelia Locator, write it down. 

6.) Change your Type to All, your Status to PEND and Display to "By locator". Search using the GDS Locator. 

7.) when you find the message in the pending box, click reply. 

8.) Append to the bottom of the message SSR OTHS 1S Rec Loc XXXXXXX (Where you replace the X's with the locator of the completed reservation).

9.) Repeat this for ALL remaining UNPROCESSED messages, until only the DVD is remaining. 

10.) Double click the single remaining DVD message to open it. 

11.) Because we just sent the agent a handful of messages confirming his other GDS messages. You can set the Status of the DVD Message to "Processed". 

12.) Click Save.