Error generating journal from custom function

Good day,

I am trying to generate a journal from a custom function but it returns the following error:

{"code":11,"message":"Solicitar carga útil no debe estar vacía para la solicitud."}

Reviewing the documentation of the books apis, I am considering all the fields even if they are not required, then I leave my code in deluge with the call to the api that returns the error:

for each invoiceline in invoice.get("line_items")

{

MapaDiario = Map();

MapaDiarioLine = Map();

MapaDiarioLine1 = Map();

MapaDiarioTag = Map();

MapaDiarioTag1 = Map();

MapaDiarioCF = Map();

ListDiario = List();

if(invoiceline.get("project_id") != null && invoiceline.get("project_id") != "" && invoiceline.get("project_id") != "null")

{

MapaDiario.put("customer_id","1932335000007555077");

ResProj = zoho.books.getRecordsByID("Projects",organization.get("organization_id"),invoiceline.get("project_id"),"test_ih");

MapaDiario.put("reference_number",ResProj.get("project").get("customer_name") + " " + invoice.get("invoice_number"));

MapaDiario.put("notes",ResProj.get("project").get("customer_name") + " " + invoice.get("invoice_number"));

MapaDiario.put("journal_type","Both");

MapaDiario.put("currency_id",invoice.get("currency_id"));

MapaDiario.put("exchange_rate",invoice.get("exchange_rate"));

//Línea de diario para débito:

MapaDiarioLine.put("account_id","1932335000000034004");

MapaDiarioLine.put("customer_id",ResProj.get("project").get("customer_id"));

MapaDiarioLine.put("description",ResProj.get("project").get("customer_name") + " " + invoice.get("invoice_number"));

MapaDiarioLine.put("amount",invoiceline.get("item_total"));

MapaDiarioLine.put("debit_or_credit","debit");

MapaDiarioLine.put("project_id",ResProj.get("project").get("project_id"));

MapaDiarioTag.put("tag_id","");

MapaDiarioTag.put("tag_option_id","");

MapaDiarioLine.put("tags",MapaDiarioTag);

ListDiario.add(MapaDiarioLine);

//Línea de diario para crédito:

MapaDiarioLine1.put("account_id","1932335000000034004");

MapaDiarioLine1.put("customer_id",ResProj.get("project").get("customer_id"));

MapaDiarioLine1.put("description",ResProj.get("project").get("customer_name") + " " + invoice.get("invoice_number"));

MapaDiarioLine1.put("amount",invoiceline.get("item_total"));

MapaDiarioLine1.put("debit_or_credit","credit");

MapaDiarioLine1.put("project_id",ResProj.get("project").get("project_id"));

MapaDiarioTag1.put("tag_id","");

MapaDiarioTag1.put("tag_option_id","");

MapaDiarioLine1.put("tags",MapaDiarioTag1);

ListDiario.add(MapaDiarioLine1);

MapaDiario.put("line_items",ListDiario);

MapaDiario.put("status","draft");

MapaDiarioCF.put("customfield_id","");

MapaDiarioCF.put("value","");

MapaDiario.put("custom_fields",MapaDiarioCF);

info "Mapa: " + MapaDiario;

}

RespDiario = zoho.books.createRecord("journals",organization.get("organization_id"),MapaDiario,"test_ih");

info "Resp: " + RespDiario;

In the code infos I get the Map that I send in the api, which I see is well structured:

Mapa: {"customer_id":"1932335000007555077","reference_number":"Sz Test Account SA de CV TEST TI","notes":"Sz Test Account SA de CV TEST TI","journal_type":"Both","currency_id":"1932335000000068065","exchange_rate":"1.0","line_items":[{"account_id":"1932335000000034004","customer_id":"1932335000007555077","description":"Sz Test Account SA de CV TEST TI","amount":1,"debit_or_credit":"debit","project_id":"1932335000015786693","tags":{"tag_id":"","tag_option_id":""}},{"account_id":"1932335000000034004","customer_id":"1932335000007555077","description":"Sz Test Account SA de CV TEST TI","amount":1,"debit_or_credit":"credit","project_id":"1932335000015786693","tags":{"tag_id":"","tag_option_id":""}}],"status":"draft","custom_fields":{"customfield_id":"","value":""}}

Could someone help me see what the error is, thank you very much in advance.

Greetings.

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