DynamoDB client not saving new entry - no errors though

[emergingdzns]

I have a laravel based system using the aws php sdk version 3.351.9.

In DynamoDB I've setup a table with "listing_id" as the partition key and "updated_at" as the sort key. Capacity Mode is set to On-demand.

Here is the PHP code I'm using to attempt to write the data to the table:

$client = new DynamoDbClient([
    'region' => config('dynamodb.connections.aws.region'),
    'version' => 'latest',
    'credentials' => [
        'key' => config('dynamodb.connections.aws.credentials.key'),
        'secret' => config('dynamodb.connections.aws.credentials.secret'),
    ]
]);

$archive_listing = [
      'TableName' => 'listings_history',
      'Item' => [
          'listing_id' => [
              'S' => (string) 'EXAMPLEIDTHATISNOTNUMERIC'
          ],
          'updated_at' => [
              'S' => (string) '2025-08-01 00:00:00'
          ],
          'changes' => [
              'M' => [
                  'data' => [
                      'M' => [
                        'id' => ['S' => (string) 'EXAMPLEIDTHATISNOTNUMERIC'],
                        'platform' => ['S' => (string) 'clientplatform'],
                        'title' => ['S' => (string) 'The title of the object'],
                        'description' => ['S' => (string) 'The description of the object which may contain HTML and emojis in it'],
                        'category_id' => ['S' => (string) 'OURENCODEDCATEGORYID'],
                        'url' => ['S' => (string) 'https://url.to.the.original.listing/'],
                        'state' => ['S' => (string) 'active'],
                        'quantity' => ['S' => (string) '1'],
                        'views' => ['S' => (string) '1'],
                        'num_favorers' => ['S' => (string) '1'],
                        'price' => ['S' => (string) '3.99'],
                        'is_taxable' => ['BOOL' => (bool) true],
                        'language' => ['S' => (string) 'en-US'],
                        'currency_code' => ['S' => (string) 'USD'],
                        'processing_min_days' => ['S' => '1'],
                        'processing_max_days' => ['S' => '3'],
                        'item_weight' => ['S' => '9'],
                        'item_weight_unit' => ['S' => 'oz'],
                        'item_length' => ['S' => '2'],
                        'item_width' => ['S' => '3'],
                        'item_height' => ['S' => '4'],
                        'item_dimensions_unit' => ['S' => 'in']
                      ]
                  ],
                  'images' => [
                    'SS' => [
                       'abcdefg123456',
                       'hijklmno7890123'
                    ]
                  ]
              ]
          ]
      ]
  ];
  
$result = $client->putItem($archive_listing);

On the values in the array above that are set to 'S' but have numbers for the values I converted to strings because when I used 'N' with actual numbers in there, Dynamo through errors saying that NUMERIC value could not be converted to string. So I just made everything a string, which is fine for our purposes as this is just archive data.

Once I worked through all the data type errors (such as the numeric issue mentioned and things like not including anything with a null or empty value) everything looked like it went through just fine. No errors. But also, nothing is writing to the DynamoDB table.

If I weren't bald already, I'd be pulling my hair out.

I have confirmed that the AWS credentials and region are correct. And with no errors being reported anywhere, what could I be doing wrong?

[emergingdzns]

Weirdly it magically started working.

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.