Getting 400 Message when sending attachment from one ServiceNow Instance to another

[mr_zia]

Dear Team,

I am using custom application, from the Update Business Rule I am trying to send attachment to another ServiceNow instance but I am getting this error :

{"error":{"message":"Invalid file type: application/json","detail":null},"status":"failure"}

Here is my BR code, Experts please help how can i fix this issue 😞

var qry = 'table_name=incident^u_sent_flag=false^table_sys_id=' + current.sys_id;

 var att = new GlideRecord("sys_attachment");

    att.addEncodedQuery(qry);

    att.query();

    while (att.next()) {

        try {

            var r = new sn_ws.RESTMessageV2('x_mea_inte_Integration', 'Send Attachment');

            r.setStringParameterNoEscape('table_sys_id', '611b0822fbb392103bf0f471beefdc06'); // sys_id hard coded for testing.

            r.setStringParameterNoEscape('table_name', 'incident');

            r.setStringParameterNoEscape('file_name', att.file_name);

            r.setStringParameterNoEscape("Accept", "application/json");

            r.setStringParameterNoEscape("Content_type", att.content_type);

            r.setRequestBodyFromAttachment(att.sys_id);

            var response = r.execute();

            var responseBody = response.getBody();

            var httpStatus = response.getStatusCode();

            gs.info("Attachment Update Response Body : " + responseBody);

            gs.info("Attachment update status : " + httpStatus);

        } catch (ex) {

            var message = ex.message;

        }

[mr_zia · Accepted solution]

I am able to send attachment now.

On the Rest Message Send Attachment Endpoint I have to add : https://instance.service-now.com/api/now/attachment/file?table_name=${table_name}&table_sys_id=${tab...

This did the magic!