invoices API ERROR AP-810770

Summary:

1.- im trying to create an AP invoice using the source "Electronic Invoice" but apparently is not allowed to be used on this way.

The output message im getting is this
You can't perform this operation or action on this invoice because it isn't allowed for this invoice source. (AP-810770)

Im using this API : fscmRestApi/resources/11.13.18.05/invoices

It works with a different source .

2.- .Does anyone know if exist another way to update an invoice Source maybe with a SOAP web service?

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