Vojislav,

Change this

boundary = "----WebKitFormBoundary7MA4YWxkTrZu0gW"   

into this

boundary = "WebKitFormBoundary7MA4YWxkTrZu0gW"   

Then, in the TEXT .. ENDTEXT structure, change all occurrences of the boundary to

--<<m.boundary>>

except for the last one, that must signal the end of form data:

--<<m.boundary>>--

In the request header, set it to

m.loXMLHTTP.setRequestHeader('Content-type', 'multipart/form-data; charset=utf-8; boundary=' + m.boundary)

Also, be sure to calculate the content length after the UTF-8 encoding.

Hopefully, this will do.

-----

Antonio,

Well done every part - that's it, it works.
I learned something new in VFP.
Thanks a lot Antonio.

Ingenious - I didn't believe it could be through VFP. I will not have to use C # for this case.

This is the answer after your recommendations, corrections

m.loXMLHTTP.statustext OK
m.loXMLHTTP.Status 200
m.loXMLHTTP.responseTExt {"status":"success","data":{"posiljkaID":2390,"sef":{"invoiceId":8143,"selesInvoiceId":18969}}}


Thanks very much
Best regards