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Sunny NarulaSunny Narula 

Procedure to use dataloader for attachment upload

I have Attachment Floder size 772MB (having around 1124 files, all having size less then 5 MB),
I have created a CSV file for necassary mappings for  Name, ContentType,Body, OwnerId,ParentId and when uploading its gives the error as 
"Heap Size Error" made a solution for this as http://www.salesforcegeneral.com/salesforce-articles/salesforce-dataloader-heap-space-exception.html

then now its giving a new error as "Error: Maximum Size of Request Reached. Maximum Size of Request is 52428800 bytes"
I tried many thing to get this fixed but unable to proceed as desired...

Requesting to please help out for the right procedure to upload such a huge data into salesforce via dataloader.

thanks in advance

Shashikant SharmaShashikant Sharma
You have to follow these steps: 

https://help.salesforce.com/HTViewHelpDoc?id=loader_attachments.htm&language=en_US (https://help.salesforce.com/HTViewHelpDoc?id=loader_attachments.htm&language=en_US)

Thanks
john yungkjohn yungk
Sunny,

Is there a problem grouping the files into smaller ZIP files so that the size of each is less than 10MB? I realize this would be alot of manual effort, requiring you to 70+ files, but it should get you around the problem.

Thank you,
John