Last Updated : | Wide Angle Software
By default Droid Transfer will limit to showing only the last 30 days of messages. Please click the 'Set Dates' option in the 'Messages' section of Droid Transfer and then ensure that all messages are set to be shown.
Also please check Droid Transfer Options > Messages to make sure the Limit Option is unchecked and Hide conversations from unknown contact option is also unchecked.
If Droid Transfer is only showing received messages in some conversations, it could be that you are using Advanced Messaging messages. Droid Transfer supports standard RCS (Rich Communication Services) messages, implemented by operators such as Sprint, Verizon and Vodafone, but does not currently support operator-specific extensions to this type of messaging like AT&T's Advanced Messaging. For this reason, Advanced Messages are not displayed fully, or copied with Droid Transfer.
You can confirm the type of message by going to the Messages App on your phone and long pressing a sent message to display the message properties. The message type may display "Advanced Message".
AT&T's version of Advanced Messaging is attempting to make a richer messaging experience on mobile. It is based upon RCS messaging, but as it is a non-standard implementation of RCS, it is currently not fully supported.
Droid Transfer supports SMS, MMS and standard use of RCS.
It is possible to turn off Advanced Messages in your device's settings / options as shown in the screenshot below, so that any future messages can be backed up by Droid Transfer, however please note that changing this option will not convert your existing Advanced Messages into standard SMS / MMS messages.
Update: We have recently had reports of users being able to gain access to Advanced Messages by ensuring that they are downloaded to the Android phone, rather than stored in the AT&T cloud. To do this, you can try turning off "AT&T Messages Backup & Sync" in your messages app, as seen in this article: AT&T Messages Backup & Sync.