As soon as I put my Error Handler in action , above message comes every now and then when multiple user are working on the same file. When I place no Error Handler with VFP's Default error messages, these errors disappears. I have SET ReProcess to 4. Problem is that as soon as I place Error Handler and error occurs VFP Ignores SET REPROCESS settings and Error Handler displays message . So is there any solution for to use error handler along with Set Reprocess settings