Are you trying to SUM data from fields in two different tables? Please post a few more specifics, like which table code1, code2, code3, REG, and FY belong to, and what's the relation between the two tables.

>This returns the number 0.
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>One of the FOR conditions involves data from a second table. I tried doing a SET RELATION command before doing the SUM command, but that returned the message "Cyclic relation". I must be missing something somewhere.
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>To SUM what I'm trying to DO: Working in VFP3, I'm creating an Excel spreadsheet. The data sums up , by month, expenses for the fiscal year. I'm dropping this into Excel because 1) I thought that would be easier than fighting with the Report Writer, and 2) I thought I'd learn something new. So I've figured out how to open a new worksheet in Excel,drop labels into cells, and display it on the screen. What I still want to figure out is how to format my headings, and actually put data from my VFP tables into the spreadsheet in the appropriate cells. I have reports created, through the Report Writer, that will do what I want for each month. Now I just need to SUM for the year, or for the Year to Date.
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>Thanks.
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>Kim