>I got this to work without a recursive call. First I set focus to the button,then I keyboard ENTER. (Keyboarding leftmouse didn't work - don't know why)

Probably because MessageBox() isn't a VFP window, it's a Windows service. You'd need some API call to send it anything.

But then, you don't need kludges here. It's much simpler:

>>

>>do form forms\sotpkbxd with curbatchsos.csono, 'PREPARE_BATCH',thisform.erpkeylookupBatchNo.Erptxtgen1.value
>>
*-- instead of 
*>>if messagebox('Skip to next Sales Order?',4+32,'Label System') = 6
*-- do this
>>do while messagebox('Skip to next Sales Order?',4+32,'Label System') = 6
>>	skip in curbatchsos
>>	if eof('curbatchsos')
>>		messagebox('No more Sales Orders to Process',0,'Label System')
            exit
>>	endif
EndDo
*>>endif
>>thisform.Refresh()
>>