Hello All I want to upload files to my external system using SOAP APIs. My requirements - 

1. upload large files to third party system using SOAP API.

2. File size can be of 250GB.

Limitation that can restrict me - 

1. maximum file size that can be uploaded - 5MB

2. maximum Heap size - 6MB. even if i want to upload usign  SOAP API i will still need to hold blob value in controller.

3. maximum web service reqquest limit - one of the main issues that i feel is 3MB limit on webservice call out, in this case i can not send SOAP request of more than 3MB.

Please help me out on this tricky solution. let me know if any further details required.

Thanks,

Ray