Google Excution API not accepting long json

I'm sending data to Google Execution API - I've got function in scripts to get parameter in json and put it in new Google Sheet. With small data it is working without a problem but I have big data to export - For example JSON that is sent in problematic export has 580k lines when formatted like this:

[
     {
        "productionDate": "12/08/2016",
        "legacyCode": null,
        "quantity": 1,
        "customer": "tst1",
        "customerAddress": "add1",
        "addressLegacyCode": "AD1"
    },
    {
        "productionDate": "12/08/2016",
        "legacyCode": null,
        "quantity": 1,
        "customer": "cust2",
        "customerAddress": "add1",
        "addressLegacyCode": "AD2"
    }
]

Does anyone of you know if there is a specific limit for length of parameter to be send to google.

I'm getting error:

[16-08-12 09:45:01:364 CEST] Starting execution
[16-08-12 09:45:01:373 CEST] Execution failed: Script function not found:  [0 seconds total runtime]