Getting error while testing source endpoint database connection using AWS DMS service

Question

I have two EC2 instances running with the same Postgres database server (same versions in both). I'm using AWS DMS service to migrate data from the source to the target database. While creating the endpoints and testing for the source database, I'm getting the below error (refer to screenshot):-

```
Test Endpoint failed: Application-Status: 1020912, Application-Message: Failure in resolving database version. The database version is not supported., Application-Detailed-Message: Supported major version numbers range is [9..14]. Source database version number is not supported: 150003 PostgreSQL 15.3 (Ubuntu 15.3-1.pgdg22.04+1) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0, 64-bit
```

If I test my target endpoint then it is successful. What could be the issue here? I created both EC2 instances with Postgres setup using my custom AMI only. I can connect to both databases with correct credentials using DBeaver and directly over the terminal of each instance using psql.

Accepted Answer

The errors seem to indicate a problem with the PostgreSQL version.  
Please refer to the following document for a description of the version.  
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Source.PostgreSQL.html

Answer

Further checking the release notes for new AWS Database Migration Service 3.5.1, I noticed that there is new feature added to it as below;

New feature or enhancement	Description
=======================    ==============
PostgreSQL 15.x support	        AWS DMS version 3.5.1 supports PostgreSQL version 15.0.

[+] https://docs.aws.amazon.com/dms/latest/userguide/CHAP_ReleaseNotes.html

There is no update for 15.3 as yet.

Getting error while testing source endpoint database connection using AWS DMS service

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