Hi guys

How to handle this type of error?

Error: UploadDoc Compile Error: Illegal assignment from String to Decimal at line 47 column 5

Hi All

Here is my requirement. I have an Object called Big Machines Quotes and there is a field which is look up to opportunity . Whenever the Status fields on Big Machine Quote is changed to "Approve" then the  stage field on Opportunity is changes to "Closed Won".

The challenge for me is I want to acheive this by Scheduling by Batch Apex. By batch apex should run every 15 mins and update the corresponding field.

Kindly help.