Error: DynamoDB missing items

Items can appear missing because a read checks the wrong key or Region, a query stops after one page, or a filter removes the matching items. Inspect the exact request before assuming data was lost.

• Continue Query and Scan while LastEvaluatedKey is present, even after an empty filtered page.
• Compare the complete key and its types with the stored item.
• Allow for GSI replication delay; GSIs do not support strongly consistent reads.
• Check whether TTL or another writer deleted the item. TTL expiry does not hide an item automatically before its deletion.
• Permission failures normally produce an error, not a successful empty read. Capture the actual exception.

See Query and Scan pagination and read consistency.