Override or set custom value for boundary in an outbound integration - HTTP multipart/form-data

Question

Hello, I am working on an integration where I need to set a custom value for "boundary". The HTTP request is of Content-Type: multipart form data. The other system expects the boundary value to be "cpi". 
 In Headers, I set Content-Type as "multipart/form-data; boundary=cpi". However, in the HTTP request that Appian generates, Appian seems to be using a random boundary value, and ignoring the value that I have set. 
 
 HTTP request that I see: 
 
 I see this data in API trace logs. 
 The integration works through Postman, and I see the correct boundary set. Postman screenshot. 
 
 Thank you in advance for your help. 
 Regards, Harish

Harsha Sharma · Answer

Hi Harish 
 Here is a similar thread https://community.appian.com/discussions/f/integrations/34900/boundary-in-multipart-form-data-to-http-request from last year! 
 Basis the thread in Appian the boundary is always 'TnQmfygKfP801A_kE1bGL-7YAFk_k6gl9'. So I don't think there is a way to set it to 'cpi' from within Appian. Please check with Appian Support if they can help with this!