Netsuite SOAP Webservice is returning -length of input buffer is smaller than amount requested error

When attempting to call a SOAP web service from oracle PLSQL and return the result in a XML Type variable

the following error occurs.

ERROR

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ORA-22921: length of input buffer is smaller than amount requested

STEPS

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The issue can be reproduced at will with the following steps:

1. Use code below:

DBMS_OUTPUT.put_line('l_vendor_envelope =' || l_envelope);

BEGIN

l_xml := APEX_WEB_SERVICE.make_request(

p_url => 'https://'||x_netsuite_account||'.suitetalk.api.netsuite.com/services/NetSuitePort_2020_1',

p_action => 'search',

p_envelope => l_envelope

);

EXCEPTION WHEN OTHERS THEN

x_status := 'E';