Hi @kjetil
If you need to save the date-time of the last request, in the incoming configuration, you should add an entity transformer that help you get the current timestamp and write it into a storage. You can use the Format: Date mapper to generate the current timestamp and use the Save entity to storage to save the date into the storage.
In order to be able to get the last saved timestamp to be used in the next request to Akeneo, you can utilize the “Input Transformer” field in the HTTP subscriber (incoming configuration). In the field, you can use the “Get an entity from a storage” to get the timestamp. Finally, you can use the loaded timestamp in the Request Parameters using a JMESPath syntax, such as below.